def A_motif(chord, bars, *tweaks):
motif = {}
if 'no treble' in tweaks:
motif['treble'] = rep(rest(1), bars)
elif chord == self.aI:
motif['treble'] = triplet_bar(pattern(chord, [6, 5]),
bars=bars)
elif chord == self.aii and 'low triplets' in tweaks:
motif['treble'] = triplet_bar(pattern(chord, [5, 4]),
bars=bars)
else:
motif['treble'] = triplet_bar(pattern(chord, [6, 4]),
bars=bars)
motif['bass1'] = doublet_bar(pattern(chord, 2, 3), bars=bars)
if 'crotchet bass' in tweaks:
motif['bass2'] = rep(note(select(chord, 1), 4), int(bars * 4))
else:
motif['bass2'] = rep(note(select(chord, 1), 1, phrasing="~"),
bars)
if 'extend tie' not in tweaks:
motif['bass2'][-1].phrasing = ""
if 'low first' in tweaks:
motif['bass1'][0] = chord[0]
motif['bass2'] = self.transpose(motif['bass2'], -9, "scale")
return motif
def altpeggio_bar(arp, bars):
return time_signature(
"14/8",
rep(
notes(
pattern(arp, 1, 2, 3, 4, 3, 4, 3, 2, 1, 2, 3, 4, 3, 2),
16), 2))
def outro(self):
return {
'treble':
self.long_melody('f a c` f`') + notes('f d', 16) * 2 +
self.long_melody('g` b` d`` f``') +
pattern(self.scale('d`', 'f`', 16), 1, 3, 2, 1) +
chord('e` g` c`', 1),
'bass':
self.held_bass('c, c') + self.held_bass('c, b,') +
chord('c, c', 1)
}
def motif(self, c):
tones = tonify(c)
return {
'treble':
rep(rest(8) + notes(pattern(tones, 2 * [3, 4, 5]), 16), 2),
'bass':
rep(
voices(
rest(16) + tied_note(select(tones, 2), ['8.', 4]),
note(select(tones, 1), 2)), 2)
}
def create_chords(self):
self.aI = self.arpeggio('f', 6)
self.aiii = arpeggio('e', 6, 'A Minor')
self.aiii7 = pattern(arpeggio7('g', 7, 'A Minor'), 1, 2, 3, 5, 6, 7)
self.aii = arpeggio('g', 6, 'G Minor')
self.aii7 = ['f'] + subset(self.aii, 2, 6)
self.bI7 = self.arpeggio('f,', 4) + self.arpeggio7('a`', 4)
self.biii = arpeggio('e,', 4, 'A Minor') + arpeggio('a`', 4, 'A minor')
self.biii7 = [
self.transpose(t, i)
for t, i in zip(self.bI7, [1, 0, 0, 1, -1, 0, 0, 0])
]
self.bii7 = arpeggio('g,', 4, 'G Minor') + arpeggio('g`', 4, 'G Minor')
self.bii7d5 = [
self.transpose(t, i, 'semitone')
for t, i in zip(self.bii7, [0, 0, -1, 0, 0, 0, -1, 0])
]
self.diii = arpeggio('a`', 3, 'A Minor')
self.dI = ['f``', 'f``']
self.dii = ['f``', 'df``', 'c``']
def arpeggio_bar(arp, bars):
return rep(notes(pattern(arp, 1, 2, 3, 4, 3, 2), 16),
int(4 * bars))
def long_melody(self, tones):
tones = tonify(tones)
return rest(8) + notes(pattern(tones, 1, 2, 3, 4, 3, 2, 3, 2, 1, 2),
16)