A score in humdrum **kern (one voice per spine)

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 beatslossy
  72:4 | 60:2,64:2 | 48:1,55:1,48:1,55:1
  • Drops metadata. Voices notation writes the notes only: key, meter, tempo, title and chords are dropped.
• ABC tune (voices from V:)exact
  X:1 M:4/4 L:1/8 V:1 V:2 V:3 K:C V:1 c8 |] V:2 C4 E4 |] V:3 C,2 G,2 C,2 G,2 |]
• Humdrum **kern (one voice per spine) · this pageexact
  **kern **kern **kern *M4/4 *M4/4 *M4/4 *k[] *k[] *k[] *C: *C: *C: 4C 2c 1cc 4G . . 4C 2e . 4G . . == == == *- *- *-

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
  C5 C

  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
  72:4

  Path score → melody

  • Drops other voices. The score has 3 voices; a melody keeps the first.
  • Drops key, meter. A melody does not carry the key C major, meter 4/4; read the score to keep them, or pass them as context when writing it back.

• Note distribution · MIDI : weight pairs

  lossy
  72:1

  Path score → melody → note-space

  • Drops other voices. The score has 3 voices; a melody keeps the first.
  • Drops key, meter. A melody does not carry the key C major, meter 4/4; read the score to keep them, or pass them as context when writing it back.
  • Drops order, duration, rests. Counts how often each MIDI note occurs (weighted by occurrence, not duration).

• Note set · Letter names

  lossy
  C5

  Path score → melody → note-set

  • Drops other voices. The score has 3 voices; a melody keeps the first.
  • Drops key, meter. A melody does not carry the key C major, meter 4/4; read the score to keep them, or pass them as context when writing it back.
  • 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
  0-7,0-4-7

  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
  0:4

  Path score → melody → point-melody

  • Drops other voices. The score has 3 voices; a melody keeps the first.
  • Drops key, meter. A melody does not carry the key C major, meter 4/4; read the score to keep them, or pass them as context when writing it back.
  • Drops root, register. A melody loses its absolute pitch, keeping rhythm and relative shape.

• Rhythm · Beats

  lossy
  4

  Path score → melody → rhythm

  • Drops other voices. The score has 3 voices; a melody keeps the first.
  • Drops key, meter. A melody does not carry the key C major, meter 4/4; read the score to keep them, or pass them as context when writing it back.
  • Drops pitch. A melody's timing alone — its durations and rests, with the pitches removed.

• Scale degrees · Jianpu (numbered notation)

  lossy
  1=C 1'

  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 3 voices; a melody keeps the first.
  • Drops key, meter. A melody does not carry the key C major, meter 4/4; read the score to keep them, or pass them as context when writing it back.
  • Drops timing, rests. Each note's distance from the key's tonic (in the context octave) as a degree; rests and durations are dropped.

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

  lossy
  aura@C3:3,4

  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 3 voices; a melody keeps the first.
  • Drops key, meter. A melody does not carry the key C major, meter 4/4; read the score to keep them, or pass them as context when writing it back.
  • Drops order, duration, rests, repetition. A melody collapses to the unordered, untimed set of pitches it uses.
  • Drops alternative positions. C5 has 2 positions on aura; the one nearest (0, 0) is kept.

• Pitch-class distribution · Twelve weights

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

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

  • Drops other voices. The score has 3 voices; a melody keeps the first.
  • Drops key, meter. A melody does not carry the key C major, meter 4/4; read the score to keep them, or pass them as context when writing it back.
  • 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
  0

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

  • Drops other voices. The score has 3 voices; a melody keeps the first.
  • Drops key, meter. A melody does not carry the key C major, meter 4/4; read the score to keep them, or pass them as context when writing it back.
  • 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

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

  • Drops other voices. The score has 3 voices; a melody keeps the first.
  • Drops key, meter. A melody does not carry the key C major, meter 4/4; read the score to keep them, or pass them as context when writing it back.
  • 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
  1000

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

  • Drops other voices. The score has 3 voices; a melody keeps the first.
  • Drops key, meter. A melody does not carry the key C major, meter 4/4; read the score to keep them, or pass them as context when writing it back.
  • Drops pitch. A melody's timing alone — its durations and rests, with the pitches removed.

• Set class · Forte name

  lossy
  1-1

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

  • Drops other voices. The score has 3 voices; a melody keeps the first.
  • Drops key, meter. A melody does not carry the key C major, meter 4/4; read the score to keep them, or pass them as context when writing it back.
  • 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.

Live coding

Use in Symbolic Cycle

sym('score/kern/**kern%09**kern%09**kern%0A*M4%2F4%09*M4%2F4%09*M4%2F4%0A*k%5B%5D%09*k%5B%5D%09*k%5B%5D%0A*C:%09*C:%09*C:%0A4C%092c%091cc%0A4G%09.%09.%0A4C%092e%09.%0A4G%09.%09.%0A==%09==%09==%0A*-%09*-%09*-')