A score in voices: pipe-separated melodies in beats

Realization

See and hear it

Same value

Also written as

Every notation of the score (voices) concept, formatted from this value by the Symbolic library.

• Voices: pipe-separated melodies in beats · this pageexact
  66:1,69:1,62:2 | 50:2,57:2
• ABC tune (voices from V:)exact
  X:1 M:4/4 L:1/8 V:1 V:2 K:C V:1 ^F2 A2 D4 |] V:2 D,4 A,4 |]
• Humdrum **kern (one voice per spine)exact
  **kern **kern *M4/4 *M4/4 *k[] *k[] *C: *C: 2D 4f# . 4a 2A 2d == == *- *-

Other concepts

Bridges

Converting into another concept may need context this value does not carry (a root, an octave, a key). Where it is missing the library assumes a default and says so; where a step drops information it is listed.

• Chord progression · Chord symbols

  lossy
  D5

  Path score → chord-sequence

  • Drops interpretation, timing, voicing. The score has no chord lane: chords are detected from its simultaneities (harmonic reduction), and their timing and voicing are dropped.

• Melody · MIDI : beats

  lossy
  66:1,69:1,62:2

  Path score → melody

  • Drops other voices. The score has 2 voices; a melody keeps the first.

• Note distribution · MIDI : weight pairs

  lossy
  62:1,66:1,69:1

  Path score → melody → note-space

  • Drops other voices. The score has 2 voices; a melody keeps the first.
  • Drops order, duration, rests. Counts how often each MIDI note occurs (weighted by occurrence, not duration).

• Note set · Letter names

  lossy
  D4-Gb4-A4

  Path score → melody → note-set

  • Drops other voices. The score has 2 voices; a melody keeps the first.
  • Drops order, duration, rests, repetition. A melody collapses to the unordered, untimed set of pitches it uses.

• Pitch-class set sequence · Pitch-class sets in order

  lossy
  2-9

  Path score → chord-sequence → pc-set-sequence

  • Drops interpretation, timing, voicing. The score has no chord lane: chords are detected from its simultaneities (harmonic reduction), and their timing and voicing are dropped.
  • Drops root function, spelling, bass, N.C.. Each chord's pitch classes, in order; N.C. becomes the empty set.

• Point melody · Point : beats

  lossy
  4:1,7:1,0:2

  Path score → melody → point-melody

  • Drops other voices. The score has 2 voices; a melody keeps the first.
  • Drops root, register. A melody loses its absolute pitch, keeping rhythm and relative shape.

• Rhythm · Beats

  lossy
  1,1,2

  Path score → melody → rhythm

  • Drops other voices. The score has 2 voices; a melody keeps the first.
  • Drops pitch. A melody's timing alone — its durations and rests, with the pitches removed.

• Scale degrees · Jianpu (numbered notation)

  lossy
  1=C b5 6 2

  Path score → melody → scale-degrees · needs key, octave

  • Assumed key C major. No key was given, so C major is used.
  • Assumed octave 4. No octave was given, so octave 4 is used.
  • Drops other voices. The score has 2 voices; a melody keeps the first.
  • Drops timing, rests. Each note's distance from the key's tonic (in the context octave) as a degree; rests and durations are dropped.

• Chord symbol · Chord symbol

  lossy
  D

  Path score → melody → note-set → chord

  • Drops other voices. The score has 2 voices; a melody keeps the first.
  • Drops order, duration, rests, repetition. A melody collapses to the unordered, untimed set of pitches it uses.
  • Drops octave, voicing. D4-Gb4-A4 is named D (also Gbm#5/D); register and voicing are dropped.

• Grid position · Cells col,row (optional layout@origin: prefix)

  lossy
  aura@C3:2,2 3,2 3,3

  Path score → melody → note-set → grid-position · needs layout, root

  • Assumed layout aura. No layout was given, so positions are read on the aura layout.
  • Assumed root C3. No root was given, so the value sounds above C3.
  • Drops other voices. The score has 2 voices; a melody keeps the first.
  • Drops order, duration, rests, repetition. A melody collapses to the unordered, untimed set of pitches it uses.
  • Drops alternative positions. Gb4 has 2 positions, A4 has 2 positions on aura; the one nearest (0, 0) is kept.

• Pitch-class distribution · Twelve weights

  lossy
  0,0,1,0,0,0,1,0,0,1,0,0

  Path score → melody → note-space → pc-space

  • Drops other voices. The score has 2 voices; a melody keeps the first.
  • Drops order, duration, rests. Counts how often each MIDI note occurs (weighted by occurrence, not duration).
  • Drops octave, register. Folds 128 MIDI bins into 12 pitch-class bins, keeping the weights.

• Pitch-class set · Pitch-class numbers

  lossy
  2-6-9

  Path score → melody → note-set → pc-set

  • Drops other voices. The score has 2 voices; a melody keeps the first.
  • Drops order, duration, rests, repetition. A melody collapses to the unordered, untimed set of pitches it uses.
  • Drops octave, register, duplication, order. A note set collapses to the unordered set of its pitch classes.

• Point set · Semitone offsets

  lossy
  0-4-7

  Path score → melody → note-set → point-set

  • Drops other voices. The score has 2 voices; a melody keeps the first.
  • Drops order, duration, rests, repetition. A melody collapses to the unordered, untimed set of pitches it uses.
  • Drops root, register. A note set keeps its shape as offsets from its lowest note and forgets where it sits.

• Rhythmic pattern · Binary onsets

  lossy
  1110

  Path score → melody → rhythm → fractional-rhythmic-pattern

  • Drops other voices. The score has 2 voices; a melody keeps the first.
  • Drops pitch. A melody's timing alone — its durations and rests, with the pitches removed.

• Pitch class · Pitch-class number

  lossy
  2

  Path score → melody → note-set → chord → pitch-class

  • Drops other voices. The score has 2 voices; a melody keeps the first.
  • Drops order, duration, rests, repetition. A melody collapses to the unordered, untimed set of pitches it uses.
  • Drops octave, voicing. D4-Gb4-A4 is named D (also Gbm#5/D); register and voicing are dropped.
  • Drops quality, bass. A chord symbol's root.

• Set class · Forte name

  lossy
  3-11B

  Path score → melody → note-set → pc-set → pc-set-analysis

  • Drops other voices. The score has 2 voices; a melody keeps the first.
  • Drops order, duration, rests, repetition. A melody collapses to the unordered, untimed set of pitches it uses.
  • Drops octave, register, duplication, order. A note set collapses to the unordered set of its pitch classes.
  • Drops transposition. The set's Tn class (Forte name with A/B, prime form); the transposition is dropped.

• Note · Letter name

  lossy
  D4

  Path score → melody → note-set → chord → pitch-class → note · needs octave

  • Assumed octave 4. No octave was given, so octave 4 is used.
  • Drops other voices. The score has 2 voices; a melody keeps the first.
  • Drops order, duration, rests, repetition. A melody collapses to the unordered, untimed set of pitches it uses.
  • Drops octave, voicing. D4-Gb4-A4 is named D (also Gbm#5/D); register and voicing are dropped.
  • Drops quality, bass. A chord symbol's root.

Live coding

Use in Symbolic Cycle

sym('score/voices/66:1,69:1,62:2 | 50:2,57:2')