def get_compatible_notes(pattern_index, right_hand_list, key, time):
left_hand_list = get_note_list_left_hand(pattern_index, key, time)
list_notes = []
if len(left_hand_list)==0 :
return right_hand_list
for left_note in left_hand_list :
for right_note in right_hand_list :
note_str = intervals.unison(right_note.name, right_note.name)
if (intervals.measure(left_note, note_str)>2 and intervals.measure(left_note, note_str)<10) or intervals.measure(left_note, note_str)>11 :
list_notes.append(right_note)
return list_notes
def make_ascending(chord, octave=4):
reduced_chord = [notes.reduce_accidentals(n) for n in chord]
new_chord = [_add_octave_to_name(reduced_chord[0], octave)]
for i in range(1, len(chord)):
if reduced_chord[i - 1] == 'C' and reduced_chord[i] != 'C':
pass
elif intervals.measure(chord[i - 1], chord[i]) == intervals.measure(
chord[i - 1], 'C') + intervals.measure('C', chord[i]):
octave += 1
new_chord.append(_add_octave_to_name(reduced_chord[i], octave))
return _rewrite_names(new_chord, chord)
def interval_class(note_first, note_second):
""" class 1: minor seconds/major sevenths (1 or 11)
class 2: major seconds/minor sevenths (2 or 10)
class 3: minor thirds /major sixths (3 or 9)
class 4: major thirds /minor sixths (4 or 8)
class 5: perfect fourths & fifths (5 or 7)
class 6: tritones (6)
"""
return interval_class_map[intervals.measure(note_first, note_second)]
def interval_class(note_first, note_second):
""" class 1: minor seconds/major sevenths (1 or 11)
class 2: major seconds/minor sevenths (2 or 10)
class 3: minor thirds /major sixths (3 or 9)
class 4: major thirds /minor sixths (4 or 8)
class 5: perfect fourths & fifths (5 or 7)
class 6: tritones (6)
"""
return interval_class_map[intervals.measure(note_first, note_second)]
def gap_last_first_note(phrase1, phrase2, key, mode):
key1 = key
key2 = key
if mode != "none" :
if phrase1[0]==0 :
key1 = key
elif phrase1[0]==4 :
key1 = intervals.fourth(key, key)
elif phrase1[0]==5:
key1 = intervals.fifth(key, key)
if phrase2[0]==0 :
key2 = key
elif phrase2[0]==4 :
key2 = intervals.fourth(key, key)
elif phrase2[0]==5:
key2 = intervals.fifth(key, key)
last_note_1 = phrase1[1][3][phrase2[1][1]-1][-1:][0]
last_note_2 = phrase2[1][3][phrase2[1][1]-1][-1:][0]
last_note_1 = get_note(last_note_1, key1)
last_note_2 = get_note(last_note_2, key2)
return intervals.measure(last_note_1, last_note_2)
notes.augment('C') # C#
notes.diminish('C#') # C
#大小调转化(无方法)
#notes.to_minor('C') # A
#notes.to_major('A') # C
#无模块
#import mingus.core.diatonic as diatonic
#十二音
#diatonic.basic_keys
#E调七音
#diatonic.get_notes('E')
import mingus.core.intervals as interval
#间隔半音数
interval.measure('C', 'D') #2
import mingus.core.scales as scales
#爱奥尼音阶对象
scales.Ionian('C')
#音对象
from mingus.containers import Note
#C4音对象
n = Note('C')
#变为C5
n.set_note('C', 5)
#音对象属性
n.name #十二音名
n.octave #第几八度
n.dynamics #其它属性
def test_valid_measure(self):
self.assertEqual(0, intervals.measure('C', 'C'))
self.assertEqual(4, intervals.measure('C', 'E'))
self.assertEqual(8, intervals.measure('E', 'C'))
def inverse(track):
# Copy value of reference to aviod problems with overwriting
inversed_track = copy.deepcopy(track)
transposed = 0
#"note" generator
input_notes = inversed_track.get_notes()
#note[-1] is a note container
#note[-1][0] is a note
#take out the first actual note from the "note" generator
tmp = next(input_notes)[-1]
while (tmp is None):
tmp = next(input_notes)[-1]
start_note = tmp[0]
#save the note name value without axidentals for camparison with the scale string
base_note_value = start_note.name[0]
if not (base_note_value == "C"):
transposed = intervals.measure(start_note.name[0].split("-")[0], "C")
inversed_track = transpose_from_halfnote(inversed_track, transposed)
input_notes = inversed_track.get_notes()
tmp = next(input_notes)[-1]
while (tmp is None):
tmp = next(input_notes)[-1]
start_note = tmp[0]
base_note_value = start_note.name[0]
#create a string with the ordered notes from the cmaj scale starting from the note after
#the base_note_value until the base_note_value is read again. This is used to calculate the
#inversed notes later on
Cmaj_scale = "CDEFGABCDEFGAB"
scale = Cmaj_scale.split(base_note_value)[1]
#Its not pretty nut it seems to work
#For every bar/"note" we get out of the note generator
for bar in input_notes:
#Check if the nc contained in the bar/"note" is a pause, then do nothing
nc = bar[-1]
if nc is None:
continue
#Otherwise
else:
#For every actual note in the note containers (important if there is a chord)
for note in nc:
#initial value for an offset variable
diff = 0
#If the note doesn't have the same note name (eg. "C" or "D") as the base note
#We calculate how many steps in the major scale we have to take to find
# A note that corresponds the one we have without accidentals.
# (eg. base_note_val ="C", note = "Eb" we have to take 2 steps to find "E" in Cmaj)
if not (note.name[0] == base_note_value):
diff = scale.index(note.name[0]) + 1
#Calculation of octave, a little messy but works
if base_note_value == "C":
if note.name[0] == "C":
note.octave = start_note.octave + (start_note.octave -
note.octave)
else:
note.octave = start_note.octave + (start_note.octave -
note.octave - 1)
else:
print("something went wrong with inverse")
#Use offset to assign the note the correct note value in C-maj
if not (note.name[0] == base_note_value):
note.name = scale[-diff]
else:
note.name = base_note_value
#TODO Add the right accidentals to the notes depending on the scale
if not (transposed == 0):
inversed_track = transpose_from_halfnote(inversed_track, transposed,
False)
#return inversed track
return inversed_track
def test_valid_measure(self):
self.assertEqual(0, intervals.measure("C", "C"))
self.assertEqual(4, intervals.measure("C", "E"))
self.assertEqual(8, intervals.measure("E", "C"))
def test_valid_measure(self):
self.assertEqual(0, intervals.measure("C", "C"))
self.assertEqual(4, intervals.measure("C", "E"))
self.assertEqual(8, intervals.measure("E", "C"))
import mingus.core.notes as notes
import mingus.core.keys as keys
import mingus.core.intervals as intervals
print(notes.is_valid_note('C#'))
print(notes.int_to_note(0)) # [0,..,11]
print(keys.get_notes("C"))
print(intervals.second("E", "C"))
print(intervals.determine("Gbb", "Ab"))
print(intervals.determine("Gbb", "Ab", True))
print(intervals.measure("C", "D"))
print(intervals.measure("D", "C"))
def test_valid_measure(self):
self.assertEqual(0, intervals.measure('C', 'C'))
self.assertEqual(4, intervals.measure('C', 'E'))
self.assertEqual(8, intervals.measure('E', 'C'))
def generate_end_bars(previews_bar, previews_bar_notes, pattern_index, key, mode):
# on genere deux mesures de fin
# previews_bar = format de la bdd
nb_notes = get_nb_notes(previews_bar)
first_bar = Bar()
last_bar = Bar()
last_index = len(previews_bar_notes)-1
last_note = previews_bar_notes[last_index]
for i in range(1, nb_notes[0]):
time = first_bar.current_beat + 1
list_compatible = get_compatible_notes(pattern_index, previews_bar_notes, key, time)
list_length = get_max_length_note(first_bar, nb_notes[0]-i)
best_notes = get_best_notes(list_compatible, last_note)
chosen_note = best_notes[random.randint(0, len(best_notes)-1)]
chosen_length = list_length[random.randint(0, len(list_length)-1)]
first_bar.place_notes(chosen_note.name, chosen_length)
if first_bar.length - first_bar.current_beat != 0 :
print("ajout de silence")
space_left = 1.0 / (first_bar.length - first_bar.current_beat)
first_bar.place_rest(space_left)
for i in range(1, nb_notes[1]):
time = last_bar.current_beat + 1
list_compatible = get_compatible_notes(pattern_index, previews_bar_notes, key, time)
list_length = get_max_length_note(last_bar, nb_notes[1]-i)
best_notes = get_best_notes(list_compatible, last_note)
chosen_note = best_notes[random.randint(0, len(best_notes)-1)]
chosen_length = list_length[random.randint(0, len(list_length)-1)]
#chosen_note.octave
chord_possible = []
chord_possible.append(intervals.unison(key, key))
chord_possible.append(intervals.fourth(key, key))
chord_possible.append(intervals.fifth(key, key))
intervals_last = []
for note_possible in chord_possible :
test = []
test.append(intervals.measure(note_possible, last_note.name))
test.append(intervals.measure(last_note.name, note_possible))
intervals_last.append(min(test))
for i,j in enumerate(intervals_last) :
if j == min(intervals_last) :
index = i
break
chosen_chord = chord_possible[index]
if mode == "mixolydien" :
chord = chords.triad(chosen_chord, key)
chord_list = []
for note in chord :
note_m = Note(note, chosen_note.octave)
chord_list.append(note_m)
last_note = note_m
last_bar.place_notes(chord_list, chosen_length)
else :
chord = chords.triad(chosen_chord, key)
chord_list = []
for note in chord :
note_m = Note(note, chosen_note.octave)
last_note = note_m
chord_list.append(note_m)
last_bar.place_notes(chord_list, chosen_length)
if last_bar.length - last_bar.current_beat != 0 :
print("ajout de silence")
space_left = 1.0 / (last_bar.length - last_bar.current_beat)
last_bar.place_rest(space_left)
return [first_bar, last_bar]
