cartazes de teoria
TRANSCRIPT
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music notationis the art ofrecording music in written form.
modern music notation is a productofcenturies of transformation...
and it is neitherefficient nor intuitive!
Notation: Pitch
##g#F#d#DD#SS#d#Mf#SSg#F
pitch is the highness orlowness of a sound.
the system of musical notationwe use is essentially astylizedgraph ofpitch versus time.
thefive lineson which notesappear is called astaff.
the white noteson the keyboardare labeled with letters fromAtoG
otation is based on thepiano keyboard;nes andspaces on the staff represent
the white noteson the keyboard.
heclefdetermines what notes each staffline corresponds to. thefour modern
clefs are shown here; the note displayedon each staff corresponds tomiddle c.
To notate theblack notes
on the pianoeyboard, we use
accidentals,which alter thenote by one orwohalf steps.
ahalf stepisthe distancebetween twodjacent keys
on the pianokeyboard,
regardlessof whatcolorthe keys are.
these symbols are placed totheleft of the note that theyaffect, and they apply to all the
notes on that line or spacefor the rest of the measure.
twonotes which have the samepitch (for example,f sharpand
g flat) are calledenharmonics
middle cis thecthat is closest tothemiddle of the piano keyboard.
Thedouble sharp raises thenote by two half steps.
Thedouble flat lowersthe note by two half steps.
Thesharp raises thenote by one half step.
Thenatural cancels outany previous accidental.
Theflat lowers thenote by one half step.
treble clef
alto clef tenor clef
bass clef
for example, aflute hasahigh pitch,while a tuba
has alow pitch.
anote is awritten representation
of a particularpitch.
pitch
pitch
F g a b c d e F g a b c d e
time
to display notesoutside thestaff, we useshortenedstaff lines
called
ledger lines.
F g a b c d e F g a b c d e
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whole
note
doubl
e
whole
note
h
alf
note
eighth
note
sixt
eenth
note
thirty
-second
note
sixty-
fourth
note
one-hundred-
twent
y-eighth
note
quarter
note
wholer
est
double
who
le
rest
half
re
st
eighthr
est
sixteenth
rest
thirty-secon
d
rest
sixty-fourt
h
rest
one-hund
red-
twenty-eighth
rest
quarter
rest
Notation: Rhythm
whilepitch is pretty clearly notated on a
vertical axis,note lengthis indicated using
somewhat arcane system involving
noteheads, stems and flags.
in this chart, each successive type of note ishalf as long
as the note to its left. none of these notes has astandard
length;a half note in one piece may be the same length as
an eighth note in a different piece.
note lengths in a piece
are indicated by the temp
markingat the beginning
of a piece or section.
arest is a period of
silence that a length
which corresponds to a
particular note.
usually rests are
placed on the staff at a
particular vertical
position as shown here.
theaugmentation dot
is a dot placed to the
right of a notehead. though small, this dot
wields someserious power:it changes the
length of the note by150%.In other words,
it makes the note half again as long!
multiple dots can also be added,
each one adding half of the
previously added value.
= + = + + = + + + = + + + +ties are curved marks which connect
two notes together to create
asingle, extended sound.
to tiemore than twonotes together,
draw ties betweeneach note;do not
use a single, extended tie.
a tuplet is any non-standard division of a
note. these are usually written as a group
of notes delinated with abracket and
anumber showing the division being made.
most tuplets are simple divisions, like
the triplets to the left. but anything is
possible!chopin,for example, would
oftengo to townwith these things.
= =
3 for example, these arentexactly quarter notes;they are each a third aslong as ahalf note.
wha...gah!chopin,no!
down, boy!
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Notation: Meter
a fundamental feature of
most pieces of music is a
consistent rhythmic pulse.
this pulse is called thebea
and a single pulse
is called abeat unit.
here are two types of beat units:
those containing two divisions,
calledsimplebeat units...
...and those containing
three divisions,
calledcompound beat units.
in music, beats are organized into patterns ofaccented andunaccented beat units.
in fact, if you listen to a sequence of repeated notes, your brain will probably start to
perceive the notes as groups of two, three,orfour,even if no accents are present!
these groups are calledmeasures,
and they are delineated withbarlines.
the organization
of beat units
and measures in
a piece is called
meter.Meter is
described by two
numbers placed
at the beginning
of the piece:
the time signature.
by looking at the top
numberof the time signature,
you can tell two things aboutthe meter: whether itssimple
orcompound,and how many
beats are in ameasure.
be
ats
per
measure
simple compound
2
3
4
the top number
indicates thenumber
of beatsin a measure.
the bottom number
indicates the type of
notewhich serves as
thebeat unit.
simple metersareeasy.
measurebarline
the code for the bottom note
is pretty easy: refers to
a quarter note, to an eighth
note, to a sixteenth note,
and so on.
the top number indicates thenumberof divisions in a measure. to get thenumber of beats, divide it by three. in fact, wouldnt this bean easier way to notatecompound meters?sorry... theman says
you have to do it
the other way.
the bottom number indicates the type of
notewhich serves as thedivision.
to get thebeat unit,use the note that
is equal to three of these notes.
in a compound meter, the beat unit is
always adotted note!
compound metersarestupidly complicated.
notes that haveflags can
be grouped together by using
beams in place of flags.
however, beaming is only used to group notes within beats.
for the most part, you shouldntbeam notesbetween beats,
nor should you tie notes withinbeats.
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notes should be beamed in groups that illustrate th meter.for simple rhythms, this is pretty easy to do;simply group any notes that can be beamed (eighth notes and smaller) intogroups that areequal to the beat unit of the current meter.
rcomplex rhythms,however, things can get complicated... when a rhythm includes thingsesyncopations or other off-beat figures,illustrating the meter may involvedividing
otesacross beat units with ties.fortunately, there is astep-by-step systemfor correctaming these complicated rhythms!
*translation:
step 1:
y,kids!
itsSparkythemusic theory dog!
DOING STUFF THE SPARKY WAY IS ALWAYS FUN
Q:
A:WOOF!*
Dear Sparky:
I understand that were supposed to beam rhythms to show the organization o
beats in the measure, but is there an easy way to beam complex rhythms?
--A.Y., Owatonna, MN
or example, letstake this rhythm,which is written
without beaming.
find the smallest note value used, and fill a complete measure with this type ofnote, beamed in groups that are equal to a beat unit in the current meter.
step 2:add ties between individual notes to recreate the original rhythm. make sure thateach tied group corresponds to a note in the rhythm you started with!
step 3:findevery group of two or more notes that areboth tied together and
beamed together,and replace them with asingle noteofequivalent value
acorrectly beamed rhythmmay include ties,but it willvery clearlyshow thebeatsin the measure... which, inturn, makes iteasier for the performer to read!
yes, i know itlooks weird...but were not
done yet!
you have notesthat are tied orbeamed, but not
both,then leavethemalone!
=
ont
uch!
hands
off!
yes...
simplify it!
original rhythm:
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he Major Scale
one of the reasons that a particular piece ofmusicsounds the way it doeshas to do with thgroup of notesthe composer decided to use.
take this melody,for example...lets first remove all theduplicate notes, regardless of which octave theyre in.
next, lets put the notesinalphabetical order,starting on the notethat the melody soundedlike it wascenteringon.
what we end up withis the paletteforthis particular piece...
there are actually manydifferent types of scales,
each with a different pattern
of whole stepsandhalf steps.
ahalf stepis thedistance between
two adjacent keys
on thepiano keyboard,regardless ofcolor.
like theboardon which a painter holdsthebits of paintbeing used in the painting being created.
in music, this palette is calledascale.though we usually write
scales fromlow tohigh,the order is actually unimportant;its thenotescontained in the scale that help make a piece sound the way it does.
a whole step is theequivalent oftwo half steps.thisparticulararrangement, wherehalf steps occur betweensteps three and fourand between stepsseven and eight(or between seven and one, since eight and one are the
same note), is called the major scale.
knowing this formula, you can create a major scale onany note!
(this scale, by the way, is called theg major scale,because it starts ong.)
thef majorscale
theb majorscale
thed flat majorscale
theg flat majorscale
but remember..with
great power
comesgreatresponsibility
wholestep
wholestep
halfstep
halfstep
wholestep
wholestep
wholestep
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f you start writingmajor
calesand pay attention to
eaccidentals that occur,
you are going to start
noticing apattern...
for example look at the flatkeys, starting with the key
that has one flat,all the
way through the key with
seven flats:the flats accrue
in aspecific order.
same with thesharp keys!
so if you look for a key that
has only ad flat,you wont
find it: if a key has ad flat,
it must also have ab flat,an e flatand ana flat!
A
A
b
b
c
c
c
d
d
e
e
f
f
g
g
Key Signatures
B E A D G C F
f c g
f c g d a
f c g d a e b
f c
f c g d
f c g d a e
f
B E A D
B E
B E A D G
B E A
B
B E A D G C
nce writing an entire piece in
sharp majorwould have
een a sure-fire way to get
arpal tunnel syndromewith
l the sharps involved,
omposers pretty quickly came
p with a way to simplify things:
ey signatures.
key signatureis a group of
ccidentals placed at the
eginning of every line of music,
ust to the right of the clef,
at instructs the performer
o apply those accidentals to
very corresponding notein
e piece unless specified
therwise.
h, andanother thing:the
ccidentals have to be placed
thecorrect order,and
ey need to follow a
articular patternof
lacement that variesslightly
epending on theclef being used!
you deviate from this, you, as
composer, will bemocked!
for example, this key
signature indicates that
everyf, c,andgin the
piece should besharped,regardless of octave!
tenor clef sharps!whats
yourproblem?you need to
conform!ha ha...never!
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F
A
E
B
D
G
C
theorists find itconvenient to
organize all the possiblekey signatures
into achart that shows their relationship
to one another.
this chart, called the circle of fifths,
displays each key as aspoke on the circle,
beginning withc majorat the top and
adding accidentals,one at a time, to the
key signatures around the perimeter. wellreturn to this chart
as we continue learning about
how composers usekeys.
as you moveclockwise around the
circle, you addsharps to the key signature.
as you movecounterclockwise around,you addflats to the key signature.
notice how that
beadgcf pattern
ops upall over
the circle of
fifths?
weird!
so could you
continue the
enharmonic
deal and have
the key of
f flat major?
yes, if you want
adouble flat
in your
key signature
nooooo!
to determine thekey
signaturefor a key, look to
see which spokeof the circle
its on to determine how many
flats orsharps it has, and
addaccidentals to the key
signature appropriately.
the keys down here line up
enharmonically...for example,
the key ofd flat majorwill sound
just like the key ofc sharp major.
B
E
A
DG
C C
F
he Circle of Fifths
for example,
e flat major
has three flats,
so it should
look like this:
0
1
2
3
4
56
7
1
2
3
4
56
7
when addingflats to
a key signature, add them
in this order:
when addingsharps,
use thereverse
of the order above.
beadgcf
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an interval isthedistance inpitchbetween two notes.the most basic way which weidentify different intervals isbycounting the stepsbetweenthe two notes.specifically, wecountscale degrees,but theeasiest way to do it isto countlines and spaceson thestaff.when counting,begin with the
bottom noteasone and countuntil you reachthe top note.
this intervalis aseventh!
two notes onhe same line orspace is called
aunison.
when we are talking aboutintervals we sometimes discuss
harmonic intervalsandmelodic intervals.
and when youswap the two notes(move the lower noteup by an octave
so it becomes thehigher note),
that is called inverting the interval.
its helpful to rememberthatseconds always invert
tosevenths, thirdstosixths,and so forth...
the fact that each of
these pairs add up tonineis known to theorists as
the rule of nines.
a harmonic interval is simplytwo notes playedsimultaneously;
a melodic interval isone note
played after the other.
harmonic
interval
melodic
interval
thatslatin forone sound!
and thatslatinfor eight!
the distance froma note to the nextclosest note with
the same letter nameis called an octave.
second
unison
third
fourth
fifth
sixth
seventh
octave
when countinthelines anspaces,wecan safelyignore any
accidentals
this intervalis also a
seventh...
well discushow itsdifferent
verysoon!
1
23
4
5
6
7
smallerintervals
iatonic Intervals
largerintervals
2nd 7th3rd 6th
4th 5th
5th 4th
6th 3rd
7th 2nd
THE RULE
OF NINES
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the following chart shows an approach for identifyin
any interval.a similar approach can be used when you
need to write a particular interval above or below agiven note:first, ad
a note above or below the given note at the correctdistance,then follo
steps2through 4of this chart to identify it. Then, if necessary,alter the
note you added with anaccidental to create the interval called for.
determine thedistance of the interval
by countinglines andspaces.
count thebottom
note as one, an
continue until yo
reach the top not
*translation:
STEP 1:
cover up allaccidentals.STEP 2:
determine the inflection of the interval
currently shown as follows:
if it is a
unison or octave:
the interval shown
is a
perfect unisonor
perfect octave.
if the interval uses
the notesfandb,
it is either an
augmented fourthor a
diminished fifth.
if the top noteis
in the major key of
thebottom note,
the interval is
major.
if thebottom noteis
in the major key of
the top note,
the interval is
minor.
otherwise, the
interval is
perfect.
really.
itjust is.
if it is a
fourth orfifth:
if it is a
second, third,
sixth orseventh:
STEP 3:
add the original accidentalsback,
one at a time,and track how the
interval changes inflection.
remember:accidentals cannever affect
thedistance of an interval... distance is
determinedsolely by the number of
ines and spacesbetween the two notes!
This method may seemcomplicated at first
but as you use it, youll internalize it and
becomefaster...so get out there and
identify some intervals!
STEP 4:
y,kids!
itsSparkythemusic theory dog!
DOING STUFF THE SPARKY WAY IS ALWAYS FUN
Q:
A:WOOF!*
Dear Sparky:
Since we are supposed to use different approaches for identifying perfect and
imperfect intervals, can you summarize them all into one system?
--I.M., Staten Island, N
poof!poof!
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There are actually two things that define akey:
thekey signatureis the most obvious one, but
another important part of a key is the tonic...
thenote around which the keycenters.
he Minor Scales
s key is defined
a key signature
fno sharps and
ats,but also by
e fact that it
nters aroundc.
the
natura
l
minor
scale
the
harm
onic
minor
scale
the
melodi
c
minor
scale
but what if wechange the tonic?what if we use the same notes for the key signature,
but change thenote that the key is centered around?
the thing is,common practice periodcomposers
werent all that crazy about this scale, because
it lacks something themajor scalehas:
a half-step fromsevento one.
his scale is great for buildingchords,so we refer to it as theharmonic minor scale
however, composers didnt use it for writingmelodies,because it had aproblem:
anaugmented secondbetween thesixth andseventh scale degrees.
so, formelodies,they made another change:
they addedanother accidental to raise
thesixth scale degreeby a half-step.
ow, remember... the reason weraised theleading tonein the first place was to create
ension from theseventh scale degreeto tonic.but in a melody, if the seventh scale
degree is followed by thesixth scale degree,we dont need that tension, so we dont
eed to raise the leading-tone at all.
he way we illustrate this is by differentiating betweenascending melodic minorand
descending melodic minor;for descending melodic minor, we dont raiseanything!
now we only
have whole steps
andhalf-steps!
the whole step
here didnt have
the tension
they liked going
into the tonic!
if we center the key around thesixth scale degreeof the major scale,
we get a new scale: theminor scale.
so heres what they did: theyraised the leading-tone by ahalf-stepwit
anaccidental.This gave them the tension they were looking for
half-
step!
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C+
Cc c
although achord is technicallyany combination of notesplayed simultaneously, inmusic theory we usually definechords as the combination of three or more notes.
riads
secundal
harmonyhords built fromseconds formtone clusters,
which are notarmonic so much
as timbral.
tertial
harmony
quartal
harmonychords built from
perfect fourths
create a differentsound, used in
compositions fromtheearly 1900s
and onward.
quintal
harmonychords built fromperfect fifths
can be respelled asquartal chords,
and as such theydo not create a
separate system ofharmony.
sextalharmony?septalharmony?
as
with
quintalharmony,
these
are
the
same
as
ter
tialand
chords built fromthirds(MORE
SPECifically, frommajor thirdsand
minor thirds)form the basis ofmost harmony in
thecommonpractice period.
is the chord still tertialif it is built fromdiminished
thirdsoraugmented thirds?
well, diminished thirds soundjust likemajor seconds,andaugmented thirds sound justlikeperfect fourths,so...
thelowest note in the chordwhen the chord is insimple
form is calledtheroot.thenames of the
other notesare based ontheir intervalabove the root.
when we stack
the chord inthirds within one octave,
we get what is called thesimple form of the chord.
no. rootthirdfifthlets get startedon tertial harmonywith the smallestchord possible:the triad.there arefour ways to create a triad
usingmajorandminor thirds:
th
e
diminish
ed
tria
d
the
m
inor
tria
d
the
maj
or
tria
d
the
aug
mented
tria
d
triad is defined as a three-note chord,but in practice it is almost always used
to refer to tertial three-note chords.
we label triads using theirroot (ac minor triad). the abbreviations shown above, which useupper case, lower case,andsymbols to show chord type, are calledmacro analysis.
twominor thirdsstacked together
amajor thirdon topaminor thirdon bottom
aminor thirdon topamajor thirdon bottom
twomajor thirdsstacked together
min 3rd
min 3rd
maj 3rd
min 3rd
min 3rd
maj 3rd
maj 3
maj 3
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6
(5)(3)
6 6 6# 6# 6# ##
Figure 1.e Basso Continuo
musical works written in thebaroque erawould ofteninclude a part called thebasso continuowhich wouldconsist of asingle bass clef melodic linewith various
numbersandaccidentalsprinted beneath the notes.
he numbers and symbolsrinted below the bassoontinuo part are calledhefigured bass.So how
o you turn figured basstochords?
first of all, its important to know that thenotegiven on the bass clef part is alwaysthebass note of the chord.and remember: thebass is not necessarily theroot!
econd, thenumbersepresent intervalsbove thebass, evenhough some numbersre usually left out.
lastly,accidentals arapplied to the interva
they appear with. if yohave an accidentalb
itself,it applies to th
thirdabove the bass
by the time theclassical periodgotgoing, composersstopped including a
basso continuo part,and so figuredbass fell out of use... with only oneexception:music theory classes!
wooo!
realizingfigured bass (writing chordsgiven a figured bass line) makes for an
excellent exercisefor students to learnhow to writein thecommon practiceperiod style!
dont overthinktheseif the composer want
a noteraised by ahalfstepand itsflatted i
the key signature, thfigured bass will hav
anatural,not asharp
ote that the intervalsre alwaysdiatonic.ont worry aboutnflection...just usehe notes from theey signature!
if there are
no numbers,add a third and
afifth above thebass... you get a
root position triad!
here, thesharpapplies to the
sixth above thebass, so we add asharp to theg.
here, there isnonumber next to thesharp,so we applyit to the third above
the bass note.
note that there isanatural,not aflat,
next to the six...if it were a flat, we
would write ac flat.
asixby itself
indicates asixthand a third abovethe bass, whichcreates afirst
inversion triad!
asixand afour
indicate asixthand afourthabove the bass,
giving you asecondinversion triad!
in performances, the bass clef instrument would simply playthegiven notes,but the keyboard player would improvise
part based on thenotes and the symbols below the par
no, no, no...there wasnt an actual instrumentcalledabasso continuo!the part was played by two
instruments:a bass clef instrument likecello orbassoon,and a keyboard instrument like aharpsichord
igured Bass
6 6 9 55
65
65
so this...
could be played as this!
6
(3)6
6 6n##
4
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now that were familiar with how
triads work, its time to put them
into the context of akey.
since writing music in a particularkey means using the notes in that key signature
it stands to reason that most of thechords will be built from those same notes
chords which use notes from a particular key signature are said to bediatonic
to that key. diatonic means from the key.that meansno accidentals!
we can quickly show all thediatonic triadsin a particular key by writing ascale
in that key and buildingtriads
oneach note,
using only the notesin that key.
riads Within Tonality
I ii iii IV V vi vii
tonic
Supertonic
mediant
subdominant
dominant
submediant
le
ading-tone
we refer to
hese chords
withroman
numerals as
shown here.
notice how
chord type
is shown by
capitalsor
ower case?
these chords are also
sometimes referred to by
their official names!
menamesdroman
merals...
ferent
pitalization!
this pattern of
major, minoranddiminished
triads is thesame inevery major key!
thesubdominant triadis alwaysmajor,
and theleading-tone triadis always
diminished,whether youre in
c majororf sharp major!
why is the sixth chord called thesubmedian
well, just as themediant chord is halfw
between the tonic anddominant chord
thesubmediant chord is halfway between th
tonic... and thesubdominanta fifthbelo
the diatonic triads inminor work the same way... since were dealing withchords,we
use theharmonic minor scale.however, its important to note that common practic
period composersraised the leading toneonly overdominant function harmon
thedominantandleading-tone triads!
because thedominant andleading-tonetriads bot
have a strong tendency to resolve to tonic,we say th
have a dominant function.thesubdominant andsupertonic chords both tend t
resolve to thedominant,so we say they both have a subdominant function
i ii III iv V VI vii
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art-Writing: The Horizontal Rules
**
thesupreme goalof part-writing isgood voice leading...making each individual voice parteasy to singby avoiding
awkward intervalsorlarge leaps!
before we get to the specificdosanddonts,lets take a lookat some important characteristicsof four-voice part-writing:
note how each voice movesaslittle aspossible,goingto thenearest chord tonein each subsequent chord!
the bass line, since it providesthefoundation of theharmony
in each chord, tends to includelarger leapsthan the other
three voices, but thats okay.
there are also a few otherrules that apply to this style:
when you have theleading tonein an outer voice(soprano or
bass) it must resolve to thetonic in the next chord.
you may not moveany voiceby an interval of anaugmented second
or anaugmented fourth.
its common for the bass tomove in the opposite direction
of theupper three voices.this is calledcontrary motion
and it helps maintainvoice independence.
four-voice harmony is a form ofcounterpoint,which is the combination ofmore than onemelodyplayed simultaneously. in counterpoint,each voice isequally important;no voice isgiven a role of accompaniment to another voice.
thegood news:you can avoid all three of
these by doing the followingwhenever possible:
1. keep the common tone!
2. move to the nearest chord tone
3. use contrary motion!
in counterpoint, it is important for each voice tobe independent; that is, no two voices should be
doing theexact same thing. if two (or more)voices were moving inparallel,therichness
of the texture would bereduced.
as a result, common practice composers werevery consistentin avoiding two or more voicesthat moved inparallel perfect octaves, parallelperfect fifths, orparallel perfect unisons!
paralleloctaves!
parallelfifths!
parallelunisons!
in some cases, the voicecan simply stay on thesame
note.This is calledkeeping the common tone,
and itsalways cool!
voice independence?
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art-Writing: Using Inversionswhen common practice composers used inverted chordsin
four-voice writing, they followed somegeneral patterns
regarding which note of the chord should bedoubled.
root position
bass
first inversion second inversion
inroot
position triads,
omposers usually
doubled the root,
which is in the
of the chord.
bass
insecond
inversion triads,
composers usually
doubled the fifth,
which is in the
of the chord.
soprano
soprano
inmajor first
inversion triads,
composers
doubled the
of the chord.
bass
inminor first
inversion triads,
composers
doubled the
the doubling offirst inversion triadsdepends
on the type of the chord being written.
heresanother way to think of it: the only time you cant double thebass is
infirst inversion major triads,where you should double thesoprano instead.
vii6
ii6
the only rule regarding
root position triads
andfirst inversion triads
is thatdiminished triadsare
always placed infirst inversion.
other than that, you can use
root position and first inversion
essentially whenever you want!
if you write a
second inversion triadand
its not one of these three situations,
then you arenot writing in thecommon
practice period style!the composers of
the style just didnt use these chords
willy-nilly.
itssecond inversion triadsthat
have thebig restrictions.
of the chord.
or
bass
indiminished
first inversion
triads, they
doubled the
of the chord.
thecadential chord
s a tonic triad in
second inversion
followed by a
root-position
dominant chord
at a cadence.
64
thepedal chord
s a second inversion
chord where the
bass is treated like
apedal tone.
64
thepassing chord
is a chord placed in
second inversion
where the bass is
treated like a
passing tone.
64
4I6
V IF: 4V6
I6
IF:
4IV6
I IF:
okay, we knowhow to use inversions in four-part writing... but when can we use them?
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art-Writing: Melodic Minor
so anyway,
after we got
him transposed
back to tonic, he
began to modulate
again, and...
what seems to be
theproblem, sir?well, I thought Id transpose to
minor,you know, to surprise the
family... so I did, and then I raised
all myleading tones, because
Im a common practice period
progression, right?
okay, sure. so whats wrong?
attention! attention!
we need assistance
with anew patient
in emergency treatment
room3b...stat!
ive got
augmented
seconds!
*gasp*
my
augmented
seconds...
theyre
cured!
all in adays work,
my good man.
now lets turn to
the unpleasant matter
of thebill.
in thecommon
practice period,
composers used
harmonic minor
by default. but
whenaugmented
secondsoccurred
they turned to a
hero for help:
melodic minor!
cure your augmented seconds withmelodic minor today!
and for thesedescendingaugmented seconds,were going to useanunraised seventh!v
and that
makes a
minor v
chord!
paging... dr. melodic minor!
doctor, what
can wedo?for this case ofascendingaugmented seconds,
I prescribe araised sixth scale degree!
ooh... amajor iv chord! IV6
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he Harmonic CadencesAcadence is generally considered to be the
last two chordsof aphrase, section or piece.there arefour types of cadences, each withtheir own specificrequirements and variations.
authentic cadenceconsists of adominant function chord (vor vii) moving to tonic.
perf
ect
authen
tic
impe
rfec
t
auth
entic
impe
rfec
t
authen
tic
perf
ect
plag
al
half
phry
gian
decept
ive
phry
gian
impe
rfec
t
plag
al
impe
rfec
t
plag
al
be considered aperfect authentic cadence,
cadence must meetall of the following criteria:
be considered aperfect plagal cadence,cadence must meetall of the following criteria:
if the cadencedoesnt meet
all of thosecriteria, itsconsidered tobe animperfect
authenticcadence!*
***
must use a vchordot a vii)
th chords must beroot position
e soprano mustd on the tonic
e soprano mustveby step
plagal cadenceconsists of asubdominant function chord (ivor ii) moving to tonic.
half cadenceisany cadence that ends on thedominant chord (v).
deceptive cadenceis a cadence where thedominant chord (V)resolves to somethingther than tonic...almost always thesubmediant chord (vi).
a specific type of half cadenceis thephrygian cadence,whichmust meet the following criteria:
if the cadencedoesnt meet
all of thosecriteria, itsconsidered tobe animperfect
authenticcadence!*
***
must use a iv chordot a ii)
th chords must beroot position
e soprano mustd on the tonic
e soprano mustep thecommon tone
*
***it occurs only inminor
it uses a iv chord moving to v
the soprano and bass moveby stepincontrary motion
the soprano and bass bothend on thefifth scale degree
V I vii6
I V64 I
IV I IV6
I ii I6
I V
VG:
G:
G:
G: G: G:
G: G:
e: e:
vi
iv6
V iv V
really, its thepsych-out cadence,in thatyouexpect it to resolve to tonic, but itdoesnt.
and, in fact, its more common to see this inthemiddle of the phrase rather than theend...
where you might call it a cadence-like structure!
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V IC:
how did composers of thecommonpractice perioddecide which orderto putchords in? did they just throwthem down on paperhaphazardly?
s a matter of fact, there are certain chord progressions that appearmorerequently,and there are others that areavoided pretty consistently. whilehe choices were always based on whatsounded goodto the composer, asheorists there is apattern in their choices that we can use to easily rememberhich chord progressions work and which onesdont.
o understand this pattern, we need to think in terms ofroot movements.a root movementhe basic interval between the root of one chord and the root of the next chord. youont have to worry about the intervals inflection, just itsdistance anddirection.
or example, to determine the root movementere, we look at theroot (notbass) of eachhord and figure the interval between them.
so heres the pattern: common practiceperiod composers generally used root
movements ofup a second, down athird, anddown a fifth!
remember... sincenflection doesnt
matter, we cannoreaccidentalswhen we figure the
root movements.
so, for example, ag chordto ane chord is down a third, but so is
gtoe flat,andg sharptoe flat!
thats not say that theynever used other rootmovements, but it didnthappen very often.
sequences of chords thatdontfollow this patternare calledretrogressions,and they are consideredunstylistic.
here are also four simple exceptions to this pattern:
any chord canmove to tonic,
tonic can moveto any chord,
any chord canmove to dominant,
and the leading-tonetriad must move to tonic
itsdown a seventh, butsince octaves dont matter,we invert it toup a second
armonic Progression
2
3
5
I I V vii I
lets try it...say you havea supertonicchord and
you are tryingto decide what
chord to useto follow it. yo
u
can
move
upasecondto
a
me
diantchord...
yo
u
can
move
dow
nafifthto
a
dom
inantchord...
oryo
u
can
use
the
first
exception
and
go
to
a
tonicchord!
yo
u
can
move
dow
nathirdto
aleading-tone
chord...
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iatonic Common Chord Modulationmodulation is the process ofchanging to a different keywithin a piece of music.
there are several differentways to modulate; perhaps the
simplest is theunpreparedmodulation, where the musicpauses and suddenly changes
key, often up ahalf-step.
common practice period composers,however, preferred a particular typeof modulation that required a littlemore planning: thediatonic common
chord modulation.as the namesuggests, this uses a chord whichisdiatonic in both the outgoing keyand thenew key.
lets say were starting off inc major...here is a list of all the keys whichhave chords in commonwith c major (the specific chords are highlighted):
ys which haveords in commone this arelledrelated keys.
notice how these keyare all close to on
another on thcircle of fifths
hey... what is thisportrait doing here?
manilow
i ii III iv V VI viia:
I ii iii IV V vi viiB :i ii III iv V VI viib:
I ii iii IV V vi viiD:
i ii III iv V VI viid:
i ii III iv V VI viie:I ii iii IV V vi viiF:
I ii iii IV V vi viiG:
I ii V I viC:e: iv V VI iv V i
to use this type ofmodulation, a composerouldpivot the harmonyaround the chord that
fit into both keys.As theorists, we show
thispivot chordbyanalyzing the chord in
both keys.
note that the pivotchord isalwaysthe
last chordthat canbe analyzed in theold key...the firstaccidentals will alwaysoccur in the chord
immediately followinthepivot chord!
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uspensions are typically further identifiedy number.The first number represents theterval between thenote of suspensionandhebass.The second number represents theterval between thenote of resolutionandhebass.
he exception to this rule is the2-3orasssuspension, where the numbersepresent the intervals between thebasswhere the suspension occurs) andhichever voice has the note which is a
econd (not counting octaves) abovehe bass.
anon-harmonic toneis a note thadoesnt fit into a chord. we classifynon-harmonic tones by how they are
approached andresolved!
Non-Harmonic Tones
passing
tone
name
abbr
eviatio
n
appr
oach
reso
lutio
n
notes
exam
ple
step steppt
resolves by continuing inthe same direction as the
approach.
ppoggiatura leap stepapp resolves in oppositedirection from approach.
changingtones
any step cttwo non-harmonic toneson either side of thenote of resolution.
suspension commontone
stepsus a note held over froma previous chord andresolved down.
pedal tone common
tonecommon
toneped
4-3sus
9-8sus
2-3(bass)sus
7-6sus
a chord tone whichtemporarily becomesa non-harmonic tone.
eighboringtone
step step Ntresolves by returning tothe note preceding the
non-harmonic tone.
scape tone step leapet resolves in opposite
direction from approach.
anticipation any common
toneant
a chord tone playedbefore the rest ofthe chord arrives.
retardation common
tone stepret
a note held over froma previous chord and
resolved up.
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iatonic Seventh ChordsWhat are they?
Remember,diatonic
means from the key.
so a diatonic chord is one
that only uses notes in
the key signature.
No accidentals!
diatonic seventh chordsare the
seventh chords you can create using
only the notes in a particular key.
I7
ii7
iii7
IV7
V7
vi7
vii7
there are eight possible types of
seventh chords in tertial harmony
but the composers of the commo
practice period only usedfive:
C: i7
ii7
III7
iv7
V7
VI7
vii7
a:
re they are
major and
minor.
emember:
we only
raise the
eading-tone
over
dominant-
function
harmony!
thema
jor
seventh
major 7th
above root
major triad
the
majo
r-mino
r
seventh
the
mino
r
seventh
the
half-diminish
ed
seventh
the
fullydi
minis
hed
sevent
h
minor 7th
above root
major triad
minor 7th
above root
minor triad
minor 7th
above root
diminished tria
diminished 7th
above root
diminished tria
we use 07 for
half-diminished sevenths
and 07 for
fully diminished sevenths.
n harmonic progressions,diatonic sevenths can
e used anywhere you can use a diatonic triad with the
ame root. V
7I7
ii7
vi7
iiiviiIVIV 7
in fact, these chords can
be approached and resolved
using any of the same threeroot movements
as triads use.
2
3
5
ith the diatonic seventh chords, we add a
ourth root movement: the common root.
owever, this root movement can only be
sed to increase tension,so going from
seventh chord to a triad is avoided.
1
V7
VV7
V
respect the seventh!respect the seventh!
hen using these chords in four-part writing in
act, when you useany seventh chord in four-part
riting, you must always,alwaysremember to... e seventh of the chordmost often approachedthe common tone.owever, it is okay toproach the seventhom below by a stepr a leap, or from above
a step.
u mustneverapproach
e seventh by aleapfrombove!
The seventh of the chord
isalways resolveddown
by step.always!
no, im serious. dontever
resolve the seventh of a
seventh chord any other
way.
doing so will cause you
certain death!
seventh chords havefour notes,so doubling in four-p
harmony is not an issue... but if you need to use irregu
doubling,double the root and omit the fif
theadd-a-seventh-inator
pat.pending
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he Dominant Seventh
I
I
I
IVV7
V7
V7
I6
V7
V6
V7
V
7
V
7hedominant seventh is thediatonic seventhchordbuilt on thefifth scale degree.wealready discussed diatonic seventh chords...why give this oneall this special attention?for one thing, thedominant seventh is,
by far, themost common
seventh chordused bythe composers of the
common practice period.
rst, a note on terminology:
he terms major-minor seventhnd dominant seventh are notterchangeable! Major-minoreventh is the chords type,anddominant seventh is therole
he chord plays in thecontext
of a particular key.
the reason these are oftenconfused is that inpopular
and jazz theory,the termdominant is used to labelthe chord type as well asthe chordsrole.
but the primary reasonfor spending a little extratime with it is the fact that
there are a few thingsthat apply to it thatdont
applyto the other diatonicseventh chords.
its just a major-minor seventh...
until its placed in a particular key!
he other important thing to know about the dominant seventh chord is that common practiceriod composers would sometimes use somenon-standardways of resolving thesevent
n this resolution, the seventh is stillresolveddown by step,but it takes anornamental detourbefore getting there.
Here, the resolution of the seventh isdelayed by moving to some other chord(usually thesubdominant) and having theseventh of the chordhold outuntil thedominant seventh returns.
in this resolution, the seventh of the choris still resolveddown by step,but the noit resolves to appears in thebass voice.
the voice thathad the seventhresolvesup,usually bystep.
after the V7
returns,thevoice that hasthe seventhshouldstill
resolve itappropriately!
this is the hot potato resolution: instead obeing resolved down by step in the same voicthe seventh ispassed to another voiceinanother dominant seventh chord.
the ornamentcan be anyshape orlength, but it
must resolveto the note
down a step
from theseventh of theseventh chord.
seventh
seventh
ornamentresolution
resolution
transferredto tenor
ornamental resolutionhe
delayed resolution
he
bass resolutionth
e
transferred resolutionthe
the seventh stillneeds to resolvedown by stepbywhatever voice isthe last to have it.
If the bass voice gets it, heresolves itimmediately,ending the fun for everyone.
5
resolutionseventh
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were going to take a little breakfrom the usual stuff and... hey,
itsludwig van beethoven!
Ill tell you whatsgoing on: ImgrumpyI bet archduke rudolp
20 guldenthat Icould write
500 measures
of music this week andso far Ive onlycome up with
four stinkin notes!whats going on, maestro?
repetition
motive repetition
nversion
nterval contraction
nterval expansion
diminution
augmentation
rhythmic
metamorphosis
mitation
hey, itscool,mr. b...we can use these notesas amotive,and createa ton more music based
on them. watch!
the simplest form of motivicdevelopment: repeating a phrase
immediately gives you twice asmuch music!
Motivic Development
beethoven
woooot!
read it andweep,rudy!
you sly fox...506 measures!wait... we are in
4/4 time,right?
so lets use2/4 timeinstead!
uh, yeah...
so, heh heh....hat gets us to253
measures...
beethoven
aw, dang!lets go
double or
nothing!
motive
motive
augmentation of original motive
metamorphosis of original motive
motive
imitation
int. expansion
sequence
inversion of original motive
sequence sequence
repeating a motive at a higheror lower level pitch. as withall of these, the intervals
dont have to match exactly.
flipping the motive upside-down:if the original motive leapsdownward, an inversion will
leap upward.
making the intervals within themotive smaller (contraction) or
larger (expansion).
changing the speed of the motiveso it is played faster (diminution)
or slower (augmentation).
any change of the motives rhythm(other than just changing the
tempo, as described above)
an echo effect between different voices
(between instruments in an ensemble, forexample, or between registers on the piano)
original motive
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when we talk about theform of a piece,we are referring to the large-scale layoutof the piece... specifically, the arrangementof sections of music, how and when they
are repeated, and what keys are being used.
inary Form
baroque dance suites were written for varying instrumentation; many were writtenforkeyboard(usuallyharpsichord orclavichord), others were written for chamber
groups, and some were even written forfull orchestra.
each movement of these suites would be written in the style of a particular baroque danceallemande, gavotte, bouree, courante, sarabande, louree, gigue,and others,
each of which had a specific character.
because baroque dance form is so common in baroque instrumental music, whentheorists and musicologists are talking about baroque music and say binary form,
they are actually referring tobaroque dance form.
One of the simplest forms isbinary form,which consists oftwo contrasting sections.werefer to these two sections as
aandb.
the sections might be contrastinginmood, tempo, key,or even in a
combination of these characteristics.
A Bb i n a r y f o rm
another somewhat rare variation ofbinary form isrounded binary form,where theAsection returns after theend of thebsection. this reprise of
theasection, however, isshortened,
so we refer to it as a prime.
A ABrou n ded b i n a r y f o rm
binary form is used inbaroque dancesuitesin a very specific way. In thesepieces, both sections are repeated.theAsection begins in the primary keyand modulates to thekey of the
dominant,and the B section begins inthat key and modulates back to theoriginal key. performers of the timewould typically improvise ornamentationwhen repeating each section.
A Bb a roqu e d a n c e f o rm
I V V I
1010111011011110111011100100001001000000101100101101111011101010010000001
00010111001001100101001000000111001001100101011000010110110001101100011110
10010000001101001011011100110001101110010011001010110010001101001011000100
11011000111100100100000011001110110010101100101011010110111100100101110
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ernary Form
in ternary form, theasection appearsboth at the beginning and at the end;
like binary form, thebsection iscontrasting in character.
the reprisedasection may be an exactrepeat of the firstA,or it may be
slightly different, but thelength oftheasections should be similar.
theminuet and triois a variation on
ternary form used for instrumentalmusic. instead of writing out the reprised
asection, the score will place theinstruction da capo al fineafter the
bsection, which means to return to thebeginning, play through theasection,and end the piece.
its worth mentioning thatthere is a common formthat is descended from
minuet and trioform:themilitary march form
favored by john philipsousa and other american
march composers.
in themilitary march form,the a section is split into twosubsections, called thefirst strainandsecond strain.the trioadds a flat(or removes a sharp) from the keysignature, modulating to the key of thesubdominant.most marches begin with a shortfanfare, and repeat thetrio, placing a short, intensely dramatic passage between
repetitions called thedogfight orbreakstrain.
this is different fromrounded binary,where the reprisedasection (which wecalleda prime) issignificantly shorterthan the firstasection.
this same form is commonly used in baroque and classical opera, where it is calledada capo aria.In both minuet & trio and da capo aria, anyrepeats are ignored
when playing through the repriseda section.
ternary formis a three-part form.rather than using three completelydifferent sections,most pieces internary form consist of two sections,
the first of which isreprised.
A ABt e r n a r y f o r m
A Bm i n u e t & t r i o f o r m
minuettrio
Fine Da capoal Fine
m i l i t a r y m a r ch f o r m
A B(dogfight)
fanfare
1st & 2nd
strains
trio
I IV
sousa
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sonata allegro formis a specific form
first used byearly classicalcomposers i
opening movements of multi-movement
works for solo, chamber or large groups
it was eventually adopted by other composers
of the classical and early romantic eras.
he form itself is based from
ternary form, in that the
irst large section is reprised
at the end of the form,
one of the most important features of sonata allegro form is the two primary themes
hat make up the exposition. THese two themes will beconstrasting in characterand, at
east in the exposition, will be indifferent keys.in a major work, the second theme will
e in the key of thedominant;in a minor piece, the second theme will be in therelative
major.in therecapitulation,however,both themes are played in the tonic!
he diagram above shows therequired elementsof sonata form; in the diagram below,
everal other elements, which are optionallyincluded, are also shown.
ear in mind that composers did what they wanted to... some of the greatest pieces written
n sonata allegro form feature places where the composer artfullybroke these rules!
onata Allegro Form
s o n a t a a l l e g r o f o r m
A ABfirst
theme
major
keys:
minor
keys:
second
theme
development
of main themes
first
theme
second
theme
development recapitulationexposition
I V I Ii III i i
s o n a t a a l l e g r o f o r m ( w i t h o p t i o n a l e l e m e n ts )
A ABintroductio
n
transition
codetta
coda
first
theme
second
theme
development
of main themes
addition of
others
first
theme
second
theme
development recapitulationexposition
I V I I
i III i i
major
keys:
minor
keys:
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up to this point, all the chords weve
been talking about have been built using
only the notes in thecurrent key.
essentially, this means
no accidentals,with the
exception of the raisedsixth
andseventh scale degrees
inminor,which we
consider to be
part of the key.
first, every altered chord has to
have at least oneaccidental...
f it doesnt have any accidentals,
then bydefinitionits a
diatonic chord!
with few exceptions,
altered chords can use
the samebasic root
movementsthat weve
been using.
avoidcross relations.
a cross relation occurs when a note
appears with two different accidentals
in two consecutive chords,in two
different voices.
lastly, when you use these chords
inpart-writing, you should,
whenever possible, resolve the
altered notesin thedirection
of their alteration.
so if a note has aflat, try to
resolve itdown by step or by leap.
and we generally avoiddoublingaltered tones,
since doing so would tend to causeparallel octaves
second, altered chords can be easily used in place of their
diatonic counterparts. in other words, you can add somepizazzto a composition by replacing adiatonic chordwith an
altered chord
that has the
same root.
now that weve covered all
the possiblediatonic chordsin
tertial harmony, its time to open
the door to notes outside the key
these altered chordsadd a
certain richness to the harmony
by using one or more notes
that arenot in the key signature
and thus requireaccidentals.
diat
onic
altere
d(c
hrom
atic)
27theory
diatoni
ctriads
diatoni
cseve
nths
extend
edhar
monies
8
15
88
5
Altered Chords
BORROWED
CHORDS 26NEAPOLITAN
SECONDARY
DOMINANTS
dAUGMENTED
SIXTHS
V Secondary
Subdominants
$
well be covering
several categories
of altered chords,
each of which have
their own unique
rules for use.
however, there are
a few things that
they all have in
common!
V/
V ii
altered diatonic
I IV
6IV V
7vi
VI
23
5
1
like the diatonic sevenths,
however, thecommon root
should only increase tension...
dont move from an altered chord
to its diatonic counterpart.
ii65 V
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orrowed Chords
altered chords use notes outsidethe scaleas a means of adding adifferent colorto the chord.
for example, the following chords arediatonic chordsinc minor:
orrowed?
hy call themt when majoreverbringsthem back?
but if we use them in a major key, they requireaccidentals and arethereforealtered chords.we call theseborrowed chordsbecause they
areborrowedfrom theparallel minor.
how does a composer decide whichaltered notes to use? in amajor key,
one possibility is using notes and chordsfrom theparallel minor.
iic: ii7 III iv VI vii7
iiC: ii7 III iv VI vii7
hey, minor!ll have themck by tuesdaythis time, Ipromise!
and, in fact, these six chordsare the six most commonly used
borrowed chordsin the commonpractice period. (One of them, the
major triad on the lowered mediant,or flat three,was not used much
by composers beforetheromantic era.)
some theoristsefer to the usethese chords as
mode mixture. two of these chords,the flat threeand flat six,havealtered tonesasroots.
we place afull-sized flatsymbolbefore the roman numeral itselfto indicate thisaltered root.
all the usual part-writing rules apply to thesechords. for example:
theborrowed supertonicis adiminished triad,and is thereforealways used infirst inversion.
its usually best to resolve alterednotes in the direction of theiralteration, but doing so in the two
altered rootchords wont work.
the borrowedseventh chords
an be used in any inversion, but theseventhmust beapproached
andresolvedproperly.
the leading-tone fully diminished
seventh is theking ofdominantfunction.dont even think of
resolving it to anything but tonic!
ii6
vii7
vii7ii7
IIIVI
VI V
VI V
wait... why? since we
double the root,moving both rootsthe same directioncan often result in
parallel octaves.
its more important toavoid parallelism thanto resolve the notesa certain way, so this
use ofcontrarymotionis better.
5 8
V7 ii6i i VI Vg:
I
theres another chord that is ofte erroneously called a borrowed chor used inminor,taken from the parallel
major.its thepicardy third:a tonicchord with araised thirdused as thefinal chordof the piece.
named for24th-century
explorerjean-luc
picard!*
*Nope.
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*****he Neapolitan Six
in addition to thealtered root borrowed chords,there is anotheraltered root chordthat fits well
with the borrowed chords, even though it is notactually borrowed from theparallel minor.
that chord is amajor triad
built on the
lowered secondscale degree.
there are a couple of interestingthings about this chord. one is
the fact that it isalmostexclusivelyused infirst inversion.
seriously!although thischord isextremely common
in the common practiceperiod, there are very few
examples of it used inroot position.
second inversionisevenrarer.
the second interesting thing aboutthe chord is itsname:you might expectit to be called a flat two,in keepingwith the other altered root chords.
but, in fact, this is the first of a few chordsthat have special names. This particular oneis called theneapolitan chord.
Naples scarlatti
neapolitan means from naples,
referring to the city ofnaples,italy.the chord isnt actually
from naples, though; it wasjust associated with the operaswritten by neapolitan composerslikealessandro scarlatti.
funny thing is, this chord was used pretty
commonlybeforescarlattis time, incompositions far from the courts of italy.
its also worth noting that although nearlevery theorist and theory textbook calls thchord a neapolitansixth chord, it is mor
properly called a neapolitansixchord. thatbecause in the rare situations where it is use
in root position, it is simply called theneapolitanchord,and when it is found in second inversion
its called theneapolitan six-four
since we dont pronounceI6as one sixth,we shouldnt say Neapolitan sixthforN6!
N6
C:
The Neapolitan six chord, since it isbuilt on a form of thesupertonic,has some characteristics of a
subdominant function chordin that it often resolves toward a
dominant function. in fact, it is verycommon to see the neapolitan chordresolve to adominant seventhinthird inversion,or to acadential
six-four chord.
(even though the neapolitan chordhas a lot in common with othersubdominant function chords, it ismost often referred to as part ofa larger group of chords calledpredominants,and the label ofsubdominant function is generallylimited to thesubdominantandsupertonic chords and their
variants.)
since its not a borrowedchord, this chord can be usedin bothmajor andminor.
N6
N6
V42 I
64C:
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econdary Dominants
the answer, of course, is withsecondary dominants.
lets say we wanted toapproach this vichord.
what if we wanted to usethatdominant-tonicmagic
ere is aduality at the heart of commonactice period harmonic progression.e the ancient conflict ofjedi andth, it consists of forces that,one level, workagainst eachher... but at another, higherel, work together, creatingergy that drives all else.
that duality, of course, is the relationsofdominant functionand tondominant harmony typifies tensioin the common practice period, a
the tonic represents releasits simplest form, theauthen
cadence,has been ubiquitoin western music for centurie
V
I
he progression of dominantmoving to tonic is so strong, itwould be nice to be able to use
to provide motion to chordsother than tonic.
but thatscrazy talk,thoughisnt it? I mean, how could we
control that magic and make iobey ourcompositional whim?
vi
?vi
vi
? we could use one of the usualdiatonic chords, the tonic, thesubdominant, the mediant... butwhat if were looking for a bitmore tension and release?
Va: C:i
viVa
aV
if we pretend for a moment that the chord were resolving to is a tonic chord, what woule correspondingdominant chord be?altered,yes, but were not afraid of those anymor
while we might have once called this ashortmodulation,it is really more likeborrowing another keys dominant chord.
if we think of the Vchord in the keyas theprimary dominant, Vchords ofelated keys aresecondary dominants.
inmajor keys,the xabove can be anydiatonic chord other than tonic(obviously)or theleading-tone triad.why? becauseadiminished triadhas a hard time acting
like a temporary tonic chord.
inminor keys,the composers generallyonly used secondary dominants
of ivand of V.
these chords often resolve to thechord under the slash,but they ca
actually be approached and resolvedusing thebasic root movements!
yes.yes theydo
now, were not just limited to the vchord:there arefive chords with a dominant function
V viiV7
vii7
vii7
dominant function chords
the secondary dominants
Vx x x x x
viiV7 vii7 vii7that gives us
a huge list ofpossibilities!
2
3
5
1
the basic
root movementsrock!
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Fr.6
on 2
I
Augmented Sixth Chords
first, well start with
the doubled root of a
V chord...
V
...andapproach that
octave with a half step
below the top note,
...and a half stepabove
the bottom note...
V
...and, finally, add the
tonic as the third note.
V
like that moment of incredible tensionjustbefore thehero finally kisses theleading
lady,thehalf-stepis thego-to interval
for creating tension in music of the common
practice period. itdrives theentire style!
f one half-step can create such strong tension, how
bouttwo
half-steps soundingsimultaneously?
Lets
get creative here for a minute to find a cool new way
o approach a diatonic chord. in this case, well use them to approach thedominant triad.
the result is a new chord, one we call theaugmented sixth chord,
after the interval created by the top and bottom notes.
augmented sixth chords arepredominant chords
meaning they are used to approach dominant chord
they are usually used to approach dominant triads
not dominantsevenths,because of thedoubled
rootspresent in dominant triads.
however, they also often
approach tonic chords
insecond inversion,
which also contain a
doubled fifth scale degree.
rarely, augmented sixth chord
are found transposed down
aperfect fifth,analyzed ason flat two,and used to
approach a tonicchord in
root position.
It.6f we just usethree notesnd double thenic, we get theitaliangmented sixth. Fr.6f we add thesecond scaleegree insteadf doubling thenic, we get thefrenchgmented sixth.
Ger.6
and if we
replace the
second scale
egree with the
owered third
cale degree,
we get the
germangmented sixth.
Ger.6
I
64
Ger.6 V
5
and, finally, when resolving
the german augmented sixth
chord to a dominant triad,
you might find yourself
writingparallel fifths...
but itsperfectly okay!
mozart did itall the time!
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C:
econdary Subdominantsafter learning aboutsecondary dominants,
you might wonder if its possible to extend the
concept to other chords.
for example, if we can use adominant functionchord
from a related key, what about asubdominant function
chordfrom a related key, likeIV of V?
well, the answer is yes,and the chords that result are calledsecondary subdominants
but before we talk about them, you need tounderstand a few things.
toapproachthese chords,
use any of thebasic rootmovements.
the most common way toresolve
secondary subdominants is to
the correspondingsecondary
dominant.which areawesome.
first of all, the veryexistence of
these chords isdebatable.
what one theorist might call
asecondary subdominant:
another might call a
shortmodulation.
V6 Iii7V
V42
V
C:
C:
G:
V
6
I6
I
ii7
V42
second, the only place
we find chords that
we cancall secondary
subdominants is in the
music of thex
romantic era.x
Lastly, since these chords are alread
pushing the limits of tonality, composer
would only use secondary subdominant
fromclosely related keys.I
other words, secondary subdominant
should only be of IVand of V
iv
IV iv
V
keeping these things in mind, lets look at thepossibilities:
what are all thesubdominant function chordsweve encountered?
first, there are
thediatonic triads:
ii IV
next, thediatonic
seventh chords:
ii7
IV7
and, lastly, a few
borrowed chords:
ii ivii7
so a secondary subdominant can
have anysubdominant function
chordabove the slash, and
aIVor Vbelow the slash.
however, the most commonly
found secondary subdominants
are those that use thehalf-
diminished supertonic seventh.
ii7
IV
ii7
VV
V
ii7
V
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IF: IV V I DM B M
the music of thebaroque, classical
andromanticeras share a consistent use
fharmony andcounterpoint, enough to cause
heorists and historians to group them together
as the Common Practice Period.
however, the music of theromantic
eraemployed some interesting
techniquesthat set it apart from
the baroque and classical eras...
...andforeshadow some o
the big changes coming in
the twentieth century!
2000
1900
1800
1700
1600
1500
romanticearly 20th
centurycontemporaryclassicalbaroquerenaissance
Romantic Era Techniques
weve already mentioned a few chords
that were specific to the romantic era:
dominant eleventhand
thirteenth chords,
the flat threeborrowed chord,
andsecondary subdominants.
V11
V13
III
ii
IV
ii
V
iv
IV
V7
Ger.6
another technique that is unique to the romantic era isthe resolution of anaugmented sixth chordto adominant seventh chordrather than a dominant triad,
causing the interval of the augmented sixth to resolve
obliquelyinstead of moving outward to the octave.
finally, romantic era composers would sometimes use a particular type of chord
progression that had the effect ofsuspending tonalityfor a portion of the
piece. By temporarily removing the feeling of being in a certain key, the composer
could easilymodulate to a distant key!
this technique is called
third relationsbecause it
involves moving by root
movements of amajor or
minor thirdwithout respect
to key signature.
for example...
here, were
in F major...
*whump*
...thirdrelations
areliketurning
offthegravity
intheroom
forabit...
...and then turning
the gravityback
on... but in a
different
direction!
if you think of
tonality like
being in a
room...
F M E M IB: IV V I
...here, were just moving
down by Major thirds...
and then we land
in b major!
...which obscures any
sense of key we had...
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m2 P4
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he Modern Modes
v.williams aristoxenus
platohildegard
es,but we only call them modernbecause we need to differentiate between a bunch of
nrelated thingsacross music history that, ever so inconveniently, use thesame names!
and, to make matters worse,each of these things use the names to representdifferent
concepts! fortunately, right now, were only worried about themodern modes.
these modes are used a lot...
especially infolk music.as for
standard western repertoire,
hey are first prominently featured
in thepost-romantic musicof theearly twentieth century
british isles.
ll, remember when we created thenatural minor scaleby starting with amajor scale,
t using thesixth note of the scale as the tonic? it gave us a new pattern of whole steps
d half steps... anew scale.
by starting on the other notes of the major scale, we get the other five modes.
a moreeffective
method of keeping
the modes straight
involves memorizingminor + raised 6th
in fact, these are two of the seven modern modes:
major is the ionian mode,and natural minor is theaeolian mode.
minor
keeping the same key signature,
we use this note as our new tonic!
one of theprimary characteristicso
theseenglish modalistsis that they
tended to avoid thestrong tensions
of thecommon practice period...
for example, they avoided chords
that used a tritone...and avoided
raising theleading tonein minor key
the modern
modes names
came from the
various keys
used in medieval
church music
which were, in
turn, named in
honor of the
lute rangesused
in laterancient
greekmusic
and those
used the same
names asscale
tunings discussed
byplato in
380 bc!
brita
in!
so what are they?
major
c ionian
a aeolian
DtoD: thedorian mode
EtoE: thephrygian mode
F toF: thelydian mode
GtoG: themixolydian mode
B toBthelocrian modebecause it hasadiminished tonic,
locrian is a theoretical
mode...its not used
inactual practice.
the modes here all sharethe samekey signature...
they arerelated,like
c major and a minor!
modern?
wait, isnt this stuff, like,
100 years old?