Symbolic / Pc Set Sequence / Roman numerals in the context key

A pc set sequence in roman numerals in the context key

lossyNeeds root, octave, timing before it sounds

I-IV-I

  • Assumed key C major. No key was given, so C major is used.
Addresspc-set-sequence/roman/I-IV-I

Realization

See and hear it

Each set is voiced upward from octave 3, one per step.

48·52·55 48·53·57 48·52·55

Same value

Also written as

Every notation of the pitch-class set sequence concept, formatted from this value by the Symbolic library.

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.

  • Pitch-class set · Pitch-class numbers

    lossy
    0-4-5-7-9

    Path pc-set-sequence → pc-set

    • Assumed key C major. No key was given, so C major is used.
    • Drops interpretation. pc-set-sequence/roman is an interpretation of the value.
    • Drops order, duration, chord boundaries. A progression collapses to the union of its pitch classes.
  • Chord symbol · Chord symbol

    lossy
    Fmaj9/C

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

    • Assumed key C major. No key was given, so C major is used.
    • Drops interpretation. pc-set-sequence/roman is an interpretation of the value.
    • Drops order, duration, chord boundaries. A progression collapses to the union of its pitch classes.
    • Drops interpretation. 0-4-5-7-9 is named Fmaj9/C, a detection rather than a spelling.
  • Note set · Letter names

    lossy
    C4-E4-F4-G4-A4

    Path pc-set-sequence → pc-set → note-set · needs root, octave

    • Assumed key C major. No key was given, so C major is used.
    • Assumed root C. No root was given, so the value is read from C.
    • Assumed octave 4. No octave was given, so octave 4 is used.
    • Drops interpretation. pc-set-sequence/roman is an interpretation of the value.
    • Drops order, duration, chord boundaries. A progression collapses to the union of its pitch classes.
  • Pitch-class distribution · Twelve weights

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

    Path pc-set-sequence → pc-set → pc-space

    • Assumed key C major. No key was given, so C major is used.
    • Drops interpretation. pc-set-sequence/roman is an interpretation of the value.
    • Drops order, duration, chord boundaries. A progression collapses to the union of its pitch classes.
  • Point set · Semitone offsets

    lossy
    0-4-5-7-9

    Path pc-set-sequence → pc-set → point-set

    • Assumed key C major. No key was given, so C major is used.
    • Drops interpretation. pc-set-sequence/roman is an interpretation of the value.
    • Drops order, duration, chord boundaries. A progression collapses to the union of its pitch classes.
  • Set class · Forte name

    lossy
    5-27A

    Path pc-set-sequence → pc-set → pc-set-analysis

    • Assumed key C major. No key was given, so C major is used.
    • Drops interpretation. pc-set-sequence/roman is an interpretation of the value.
    • Drops order, duration, chord boundaries. A progression collapses to the union of its pitch classes.
    • Drops transposition. The set's Tn class (Forte name with A/B, prime form); the transposition is dropped.
  • Grid position · Cells col,row (optional layout@origin: prefix)

    lossy
    aura@C3:3,0 4,0 2,3 4,1 3,3

    Path pc-set-sequence → pc-set → note-set → grid-position · needs root, octave, layout

    • Assumed key C major. No key was given, so C major is used.
    • Assumed root C. No root was given, so the value is read from C.
    • Assumed octave 4. No octave was given, so octave 4 is used.
    • 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 interpretation. pc-set-sequence/roman is an interpretation of the value.
    • Drops order, duration, chord boundaries. A progression collapses to the union of its pitch classes.
    • Drops alternative positions. C4 has 2 positions, E4 has 2 positions, G4 has 2 positions, A4 has 2 positions on aura; the one nearest (0, 0) is kept.
  • Note distribution · MIDI : weight pairs

    lossy
    60:1,64:1,65:1,67:1,69:1

    Path pc-set-sequence → pc-set → note-set → note-space · needs root, octave

    • Assumed key C major. No key was given, so C major is used.
    • Assumed root C. No root was given, so the value is read from C.
    • Assumed octave 4. No octave was given, so octave 4 is used.
    • Drops interpretation. pc-set-sequence/roman is an interpretation of the value.
    • Drops order, duration, chord boundaries. A progression collapses to the union of its pitch classes.
  • Pitch class · Pitch-class number

    lossy
    5

    Path pc-set-sequence → pc-set → chord → pitch-class

    • Assumed key C major. No key was given, so C major is used.
    • Drops interpretation. pc-set-sequence/roman is an interpretation of the value.
    • Drops order, duration, chord boundaries. A progression collapses to the union of its pitch classes.
    • Drops interpretation. 0-4-5-7-9 is named Fmaj9/C, a detection rather than a spelling.
    • Drops quality, bass. A chord symbol's root.
  • Note · Letter name

    lossy
    F4

    Path pc-set-sequence → pc-set → chord → pitch-class → note · needs 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 interpretation. pc-set-sequence/roman is an interpretation of the value.
    • Drops order, duration, chord boundaries. A progression collapses to the union of its pitch classes.
    • Drops interpretation. 0-4-5-7-9 is named Fmaj9/C, a detection rather than a spelling.
    • Drops quality, bass. A chord symbol's root.

Live coding

Use in Symbolic Cycle

sym('pc-set-sequence/roman/I-IV-I')

The slash address goes in single quotes; in double quotes it would be mini-notation, where / divides time.

Open in Code Sequencer

More about Roman numerals in the context key