def choose_melody_pitches(self, notes, register, harmonies):
print 'Choosing pitches'
for h in harmonies:
h['pitch_classes'] = [p % 12 for p in h['pitch']]
set_start_end(notes)
set_start_end(harmonies)
previous_note_index = random.choice(range(int(len(register) * .4)))
prev = register[previous_note_index]
for note in notes:
beats = list(
frange(note['start'], note['start'] + note['duration'], .25))
note_harmonies = []
for b in beats:
h = get_at(b, harmonies)
h = h['pitch_classes']
if h not in note_harmonies:
note_harmonies.append(h)
print 'note_harmonies', note_harmonies
if len(note_harmonies) == 1:
pitch_options = self.get_pitch_options(note_harmonies[0], prev)
else:
pitch_options = []
c = Counter()
for h in note_harmonies:
for p in h:
c[p] += 1
common = []
for p, count in c.most_common():
if count == len(note_harmonies):
common.append(p)
if len(common) > 0:
pitch_options = self.get_pitch_options(common, prev)
if len(pitch_options) == 0:
ranked = [p for p, _ in c.most_common() if p not in common]
for p in ranked:
pitch_options = self.get_pitch_options([p], prev)
if len(pitch_options) > 0:
break
if len(pitch_options) == 0:
pitch_options = [prev - 2, prev - 1, prev + 1, prev + 2]
note['pitch'] = random.choice(pitch_options)
print note['pitch'] % 12
print
prev = note['pitch']
self.add_ornament(note, prev, note_harmonies)
def choose_melody_pitches(self, notes, register, harmonies):
print 'Choosing pitches'
for h in harmonies:
h['pitch_classes'] = [p % 12 for p in h['pitch']]
set_start_end(notes)
set_start_end(harmonies)
previous_note_index = random.choice(range(int(len(register) * .4)))
prev = register[previous_note_index]
for note in notes:
beats = list(frange(note['start'], note['start'] + note['duration'], .25))
note_harmonies = []
for b in beats:
h = get_at(b, harmonies)
h = h['pitch_classes']
if h not in note_harmonies:
note_harmonies.append(h)
print 'note_harmonies', note_harmonies
if len(note_harmonies) == 1:
pitch_options = self.get_pitch_options(note_harmonies[0], prev)
else:
pitch_options = []
c = Counter()
for h in note_harmonies:
for p in h:
c[p] += 1
common = []
for p, count in c.most_common():
if count == len(note_harmonies):
common.append(p)
if len(common) > 0:
pitch_options = self.get_pitch_options(common, prev)
if len(pitch_options) == 0:
ranked = [p for p, _ in c.most_common() if p not in common]
for p in ranked:
pitch_options = self.get_pitch_options([p], prev)
if len(pitch_options) > 0:
break
if len(pitch_options) == 0:
pitch_options = [prev - 2, prev - 1, prev + 1, prev + 2]
note['pitch'] = random.choice(pitch_options)
print note['pitch'] % 12
print
prev = note['pitch']
self.add_ornament(note, prev, note_harmonies)
def choose_melody_pitches(self, notes, register, harmonies, start_with_rest):
# print 'Choosing pitches'
for h in harmonies:
h['pitch_classes'] = [p % 12 for p in h['pitch']]
set_start_end(notes)
set_start_end(harmonies)
# Pick a random pitch from the instrument's register on which to start
previous_note_index = random.choice(range(int(len(register))))
prev = register[previous_note_index]
previous_note = {'duration': 1.0, 'pitch': prev}
pitch_history = []
first = True
# print '-'*10
for note in notes:
if first and start_with_rest:
note['pitch'] = 'rest'
first = False
continue
beats = list(frange(note['start'], note['start'] + note['duration'], .25))
note_harmonies = []
for b in beats:
h = get_at(b, harmonies)
h = h['pitch_classes']
if h not in note_harmonies:
note_harmonies.append(h)
if len(note_harmonies) == 1:
pitch_options = self.get_pitch_options(note_harmonies[0], prev)
else:
pitch_options = []
c = Counter()
for h in note_harmonies:
for p in h:
c[p] += 1
common = []
for p, count in c.most_common():
if count == len(note_harmonies):
common.append(p)
if len(common) > 0:
pitch_options = self.get_pitch_options(common, prev)
if len(pitch_options) == 0:
ranked = [p for p, _ in c.most_common() if p not in common]
for p in ranked:
pitch_options = self.get_pitch_options([p], prev)
if len(pitch_options) > 0:
break
if len(pitch_options) == 0:
pitch_options = [prev - 2, prev - 1, prev + 1, prev + 2]
note['pitch'] = random.choice(pitch_options)
self.add_ornament(note, previous_note, note_harmonies, first)
# print note
prev = note['pitch']
previous_note = note
pitch_history.append(note['pitch'])
first = False
