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Score Textures and Tracks
Music 253/CS 275A
Stanford University
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Textural types
Ensemble texture Keyboard texture
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Beyond MIDI core examples
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Tracks in keyboard music
How many voices?
When?
Bach: WTC I, C-Major Prelude: plucked arpeggios
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Tracks in keyboard (harpsichord) music
How many voices?
When?
Bach: WTC I, D-Major Fugue
3 (4) 2 3 (4) ?
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Tracks in keyboard (harpsichord) music
How many voices?
When?
Bach: WTC I, D-Major Fugue
3 (4) 2 3 (4) ?
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Well-behaved [consistent] tracks (organ)
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Bach: four-vioice chorale
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Tracks in keyboard (piano) music
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Hummel: Prelude No. 19
Harp-like
passage
2-voice?
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Tracks in keyboard (piano) music
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Chopin: Mazurka, Op. 67, No. 1
2 3 4
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Tracks in keyboard (piano) music
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Chopin: Mazurka, Op. 67, No. 1
2 3 4
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Tracks in keyboard (piano) music
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Chopin: Mazurka, Op. 67, No. 1
2 3 4
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Braille score typologies
Ensemble texture =
“open score”
Keyboard texture =
“bar over bar”
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Braille music codes (in general)
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• Braille MN developed in c. 1850
• Six-dot cell
• Many symbols redefined by context
• Has national dialects
• Has international governing body
• Dependent on impact printing
● ●
● ●
● ●
Data dots
Switches
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Braille MN: score types
Bar-over-bar: piano music
Open-score: intended for sight-singing
Short-score: choral analogue of bar-over-bar
Section-by-section: piano music or score
Single-line: single instrumental part
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Braille: Mozart trio encoding (clarinet only)
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Setup data
Bars 0, 1
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Mozart “Turkish March” in Braille MN
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Bar 89
Bar 90
Bar 91
Bar 92
R.H.
89 90 91 92 93
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MIDI (pitch) data
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MIDI (pitch) data
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Slurs
Slur orientations
MIDI (pitch) data
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Slurs
Slur orientations
Beams
Beam slopes*
Beam lengths*
MIDI (pitch) data
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Musical structure: notation-sound conflicts
Score structure
Da capos
1st, 2nd endings
Upbeat complements
Sound file-structure
Recap point?
Repeats happen or not*
2nd endings with
transitions may not
compute**
* affects total number of bars
** where 1st time has upbeat,
repeat point has downbeat
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Notation>sound
translation
Sound specs precise,
Graphics specs free to modify
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Encoding transposing instruments
MIDI: sounding pitch
Clarinet in A
Score/part: written
pitch
Strings in A,
Clarinet in C
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