structural / Symbolic
Pc score
An octave-free polyphonic texture — simultaneous pc-sequences (lines of pitch classes). The octaveless abstraction of a score; keeps voice independence and harmony but drops register. Its `groupOf` is pc-sequence.
How it works
It identifies pitch independently of octave. Playback needs a register or voicing.
It groups pc sequence objects without requiring an order.
Written forms
Ways to write this concept
Each notation describes the same underlying object. Load a playable example to hear one MIDI realization in the Code Sequencer.
voices
Pipe-separated voices, each a pc line (comma-separated pitchClass:duration, pc 0–11).
7:2,5:2 | 0:1,2:1,4:1,5:1 | 0:4
Choose Load beside a convertible example to open its live player. Some catalog formats describe analysis or a display label and have no note realization yet.
Concept connections
ScoreA polyphonic texture — several voices (temporalized lines / tracks) sounding at once over a shared timeline. The simultaneous counterpart of a note-set: where a note-set stacks single notes into a chord, a score stacks whole lines. Its `groupOf` is note-sequence. Collapse the voices at each instant and you get a chord progression (note-set-sequence) — the resulting chord qualities of the simultaneous notes; conversely, a chord progression can be voice-led into a score. Strip pitch and it becomes a point-score (key-independent counterpoint).Point scoreA key-independent polyphonic shape — simultaneous point-sequences (offset lines). The transposition-invariant fingerprint of a counterpoint: two passages in different keys with the same voice motion land on the same point-score, so it is the natural representation for contrapuntal similarity. Its `groupOf` is point-sequence.Pitch-class setA selection of the twelve pitch classes, independent of octave and order. It says which pitches are present without choosing a chord root or voicing.Pc Set SequenceAn ordered sequence of pitch class sets that may contain duplicatesPc song formA song form whose section progressions are octave-free (pitch-class) — the octaveless abstraction of a song-form. Keeps section labels, order, and harmony but drops register. Its `groupOf` is pc-set-sequence.Pitch-class sequenceAn ordered line of pitch classes without fixed octaves. Choose registers to turn it into MIDI notes.