ch10-triads

8/7/2019 Ch10-Triads

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Chapt er 1 0 Tr iadsIn this chapter you will:

1. Identify major and minor triads 5. Identify triads with key signatures2. Write major and minor triads 6. Write triads given the third or fifth3. Identify all four types of triads 7. Review the four triads

4. Identify triads by sound and write triads given the root

1 0 .1 Iden t i f y ma jo r and m inor t r i ads

• A chord is t hree or more not es played t oget her.

• A t riad is a t hree not e chord which is writ t en in t hirds.

• There are f our t ypes of t riads. This worksheet present s t wo of t hese:• A major t riad has a major t hird on t he bot t om and a minor t hird on top.

• A minor t riad has a minor third on t he bot t om and a major t hird on top.

The 5t hs, from t he bot t om notes t o t he t op not es, in both t riads are

perfect , so 5t hs cannot be used t o dist inguish these t wo t riads.

“ Major” and “ minor” are used t o describe bot h int ervals and t riads.

Major and minor t riads are named af t er t heir bot t om t hirds.

1. IDENTIFY t he bot t om t hird of t he t riad as major or minor.

2. IDENTIFY t he t op t hird of t he t riad as major or m inor.

3 . IDENTIFY t he t riad as major or minor.



1 0 .2 Wr i t e m ajor and mino r t r iads

• The bot t om note of a t riad is called t he root .

• To writ e major and minor t riads given t he root :

1 . First write t wo noteheads above t he root in thirds.

2. Alt er the middle not e if necessary t o make t he bot t om t hird

major (for a major triad), or minor (for a minor triad).

3. Alt er t he top note if necessary t o make t he top t hird

minor (for a major triad), or major (for a minor triad).

1 . WRITE major t riads above t hese root s.

2 . WRITE minor t riads above t hese root s.

3 . WRITE t riads on t he bot t om st aff as indicat ed.

Pat hways t o Harmo ny Chapt er 1 0 . Tr iads

Date:

22 Gilbert DeBenedetti www.pitt.edu/~deben



1 0 .3 Iden t i f y a ll f ou r t ypes o f t r i ads

• Diminished t riads have t wo minor t hirds and a diminished fif t h.

• Augmented t riads have two major thirds and an augment ed fift h.

• Diminished and augment ed t riads are named af t er t heir fif t h. (Recall

t hat major and minor t riads are named af t er t heir bot t om t hird.)

• All f our t ypes of t riads can be dist inguished by t heir t hirds alone.

You can figure out t he fift h t o check your work.

1 . MEMORIZE t he chart above.

2 . IDENTIFY t hese t riads.

2 . IDENTIFY t he t riads on t he bot t om st aff .

Pat hway s t o Harmony , Ch. 1 0 . Tr iads

Date:

www.pitt.edu/~deben Gilbert DeBenedetti 23



1 0 .4 Ident i f y t r iads by sound and wr i t e t r iads g iven t he ro ot

• To ident ify t riad t ypes by t heir sound, t hese associat ions might be helpful:

Major: Birt hday part y Diminished: Halloween

Minor: Funeral Augm ented: Science Fict ion Film

• Recall from worksheet 10 .2 t o writ e t he not eheads in t hirds before alt ering

notes.

1 . IDENTIFY t riad t ypes played by your t eacher or f riend.

2 . WRITE t riads above t hese root s.


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1 0 .5 Ident i f y t yp es o f t r iads w i t h key s ignat ures

• Recall t hat t he key signat ure will af fect some not es on t he st aff .

IDENTIFY t hese t riads.


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1 0 .6 Wr i t e t r iads g iv en t he 3 rd or 5 t h

• The middle not e of a t riad is called t he 3 rd. It is a 3 rd above t he root .

• The top not e of a t riad is called t he 5t h. It is a 5t h above t he root .

• To writ e a t riad given t he 3rd or 5t h:

1 . Writ e t he not eheads in 3rds. At least one not ehead will be belowt he given not e.

2. Figure out major and minor t hirds st art ing f rom t he given not e,

not t he root . Do not change t he given note.

COMPLETE t hese t riads. The given notes are eit her 3rds and 5 t hs.


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1 0 .7 Review t r iad t yp es

1 . COMPLETE t his char t .


3 . WRITE t riads above t hese root s.

4 . WRITE t hese t riads given the 3rd o r 5 t h.



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ch10-triads

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