Simplemusic and Pitch Class Sets¶
Simplemusic¶
- simplemusic.mod12(n)¶
>>> simplemusic.mod12(13)
1
- simplemusic.interval(x, y)¶
Return the numeric interval between two notes.
- simplemusic.transposition(notes, index)¶
Transpose a set of notes by a numerical index.
- simplemusic.transposition_startswith(notes, start)¶
Transpose a set of notes so it begins with start note.
Check if two groups of notes are related by transposition.
We use brute force here; the best way is to check for the normal or prime forms.
- simplemusic.inversion(notes, index=0)¶
Invert a set of notes though an inversion index.
The inversion index is not very musical. the function
inversion_startswith()
is probably more useful.- simplemusic.inversion_startswith(notes, start)¶
Invert a set of notes so it begins with start note.
>>> simplemusic.inversion_startswith([0, 4, 7], 2)
[2, 10, 7]
- simplemusic.rotate_set(notes)¶
Return all rotations of a collection of notes.
Pitch Class Set¶
- simplemusic.name_to_diatonic(note_string)¶
Return a number from 0 to 6 for the note name without the accidental.
- simplemusic.dotted_duration(duration, dots)¶
Sn = a(1 - r^n)/1 - r where a is the first term, r is the common ration (1/2 in our case) and n is the number of terms.