def transformChunk(chunk, prev_note, chords):
# get list of transform functions
appropriate_function_list = ["identity", "partialTranspose", "retrograde", "partialRetrograde", "subRhythm"]
functions_list = dict(
[(o[0], o[1]) for o in getmembers(tfs) if isfunction(o[1])]
) # list of all possible transform functions
functions_list = dict(filter(lambda i: i[0] in appropriate_function_list, functions_list.items()))
functions_names = functions_list.keys()
random.shuffle(functions_names)
have_chunk = False # haven't created new cell yet
i = 0
while not have_chunk and i < len(appropriate_function_list): # loop until appropriate cell is found
if chunk.depth == 2:
print(functions_names[i])
if chunk.depth <= 1:
new_variations = functions_list[functions_names[i]](chunk, chords, prev_note)
elif chunk.depth == 2:
new_variations = thp.mapToHPhrase(functions_list[functions_names[i]], chunk, chords, prev_note)
random.shuffle(new_variations)
for variation in new_variations:
if pref.fitsPref(variation, prev_note, chords):
return variation
i += 1
if chunk.depth == 0:
return gc.getCell(2, prev_note, None, chords[0], chunk.durs, chunk.ctype)
elif chunk.depth == 1:
cell1 = gc.getCell(2, prev_note, None, chords[0], chunk.sub_chunks[0].durs, chunk.sub_chunks[0].ctype)
cell2 = transformChunk(cell1, cell1.pits[-1], [chords[1]])
return Chunk([cell1, cell2])
else:
print("sucker")
motif1 = genMotif(prev_note, chords[0:2])
motif2 = transformChunk(motif1, motif1.pits[-1], chords[2:])
return Chunk([motif1, motif2])
def genMotif(prev_note=0, harmony=[[0, 2, 4], [4, 6, 8]]):
first_chord = harmony[0]
second_chord = harmony[1]
# gen first cell
cell1 = gc.getCell(2, prev_note, None, first_chord, [])
# either gen or transform second cell
next_cell_type = ph.probDictToChoice({"transformed": 0.7, "new": 0.3})
if len(set(cell1.durs)) < 2 and len(cell1.durs) > 1:
next_cell_type = "new"
if next_cell_type == "new":
cell2 = gc.getCell(2, cell1.pits[-1], None, second_chord, [])
else:
cell2 = transformChunk(cell1, cell1.pits[-1], [second_chord])
return Chunk([cell1, cell2])
def transformCell(cell, harm, prev_note = None):
if prev_note == None:
prev_note = cell.pits[-1]
transformed_already = []
for function in appropriate_function_list:
new_cells = functions_list[function](cell, prev_note)
random.shuffle(new_cells)
transformed_already.append(new_cells[0])
"""for new_cell in new_cells:
for harmony in harm:
if hm.chunkInChord(new_cell, harmony) and pref.fitsPref(new_cell, prev_note, harmony):
return new_cell"""
#now try transforming already transformed cells
for transformed_once in transformed_already:
for function in appropriate_function_list:
new_cells = functions_list[function](transformed_once, prev_note)
random.shuffle(new_cells)
for new_cell in new_cells:
for harmony in harm:
if hm.chunkInChord(new_cell, harmony) and pref.fitsPref(new_cell, prev_note,harmony):
if random.uniform(0,1) < 0.8:
return random.choice(tfs.subRhythm(new_cell, prev_note, harmony, how_many=1))
else:
return new_cell
return gc.getCell(2, prev_note, first_note = None, chord = harm[0], durs = cell.durs)
def genMotif(prev_note = 0, harm = [tuple([[0,2,4]]), ([0,2,4], [4,6,8])], nameA = 'cell', nameB = 'cell', name = 'motif', names = {}):
#print('harm = ' + str(harm))
#print('harm[0] = ' + str(harm[0]))
#print('harm[0][0] ' + str(harm[0][0]))
cell1 = gc.getCell(length=2, prev_note=prev_note, first_note = None, chord=harm[0][0], durs=[])
cell1.name = getName(names, nameB)
prev_note = cell1.pits[-1]
cell2 = transformCell(cell1, harm[1], prev_note=prev_note)
cell2.name = getName(names, nameB)
if fitsMotifPref([cell1, cell2]):
new_subs = OrderedDict()
new_subs[cell1.name] = cell1
new_subs[cell2.name] = cell2
if cell1.name in names:
names[cell1.name] += 1
if cell2.name in names:
names[cell2.name] += 1
new_chunk = Chunk(sub_chunks = new_subs, name = getName(names, name))
return (new_chunk, names)
else:
return genMotif(prev_note, harm, nameA, nameB, names=names)
