def test_transpose_slash(self):
c = Chord("Am7/G")
c.transpose(3)
self.assertEqual(c.root, "C")
self.assertEqual(c.quality.quality, "m7")
self.assertEqual(c.on, "Bb")
self.assertEqual(c, Chord("Cm7/Bb"))
def test_transpose_slash(self):
c = Chord("Am7/G")
c.transpose(3)
self.assertEqual(c.root, "C")
self.assertEqual(c.quality.quality, "m7")
self.assertEqual(c.on, "Bb")
self.assertEqual(c, Chord("Cm7/Bb"))
def main():
file = 'data/chord.csv'
if os.path.isfile(file):
with open(file, 'r') as f:
reader = csv.reader(f)
chords = list(reader)
data = []
pbar = tqdm.tqdm(total=len(chords) * 12)
for num, title, chord in chords:
for k in range(0, 12):
note = []
for j in chord.split():
if 'N,C' in j or 'N.C' in j or '>' in j or j[
0] == '/' or j[:
2] == '(/' or '↓' in j or j == '-' or j == '':
continue
if j[0] == '(' and j[-1] == ')':
j = j[1:-1]
elif not '(' in j and j[-1] == ')':
j = j[:-1]
elif not ')' in j and j[0] == '(':
j = j[1:]
try:
chord1 = Chord(j)
chord1.transpose(k)
notes = chord1.components(False)
except Exception as e:
# print(e, 'error', j)
notes = []
note.append(notes)
data.append(note)
pbar.update(1)
pbar.close()
return data
def set_guitar_code(ori_key, capo_fret=capo_fret_loc):
ok = ori_key.split('_')
baseChord = ok[0].replace('s', '#')
etcChord = ''.join(ok[1:])
c = Chord(baseChord)
c.transpose(-capo_fret)
# print(str(c) + '_' + etcChord)
return (str(c).replace('#', 's') + '_' + etcChord)
def oneshot(chords=None):
a = dict([(j, i) for i, j in list(enumerate(QUALITY_DICT.keys()))])
file = 'data/ufret.csv'
if chords is None:
with open(file, 'r') as f:
reader = csv.reader(f)
chords = list(reader)
data = []
pbar = tqdm.tqdm(total=len(chords) * 12)
for num, title, hito, chord in chords:
for k in range(0, 12):
note = []
for j in chord.split('|'):
if '♭' in j:
j = j.replace('♭', 'b')
if 'N.C' in j:
continue
try:
chord1 = Chord(j)
chord1.transpose(k)
notes = 1 + len(QUALITY_DICT) * NOTE_VAL_DICT[chord1.root] + \
dict([(j,i) for i, j in list(enumerate(QUALITY_DICT.keys()))])[chord1.quality.quality]
# max: 1 + 40 * 11 + 40 = 481
except Exception as e:
notes = 0
note.append(notes)
if len(note) < 10:
pass
if len(data) == 373:
pass
data.append(note)
pbar.update(1)
pbar.close()
file = 'data/ufret_emb.csv'
with open(file, 'w') as f:
writer = csv.writer(f, lineterminator='\n') # 改行コード（\n）を指定しておく
writer.writerows(data) # 2次元配列も書き込める
return data
def test_transpose_zero(self):
c = Chord("Am")
c.transpose(0)
self.assertEqual(c.root, "A")
self.assertEqual(c.quality.quality, "m")
self.assertEqual(c, Chord("Am"))
def test_transpose_eq2(self):
c = Chord("C")
c.transpose(2)
self.assertEqual(c, Chord("D"))
def test_transpose_eq1(self):
c = Chord("C")
c.transpose(1)
self.assertEqual(c, Chord("C#"))
self.assertEqual(c, Chord("Db"))
def test_transpose_eq1(self):
c = Chord("C")
c.transpose(1)
self.assertEqual(c, Chord("C#"))
self.assertEqual(c, Chord("Db"))
def test_transpose_negative(self):
c = Chord("Am")
c.transpose(-4)
self.assertEqual(c.root, "F")
self.assertEqual(c.quality.quality, "m")
self.assertEqual(c, Chord("Fm"))
def test_transpose_positive(self):
c = Chord("Am")
c.transpose(3)
self.assertEqual(c.root, "C")
self.assertEqual(c.quality.quality, "m")
self.assertEqual(c, Chord("Cm"))
def set_guitar_code(ori_key, transpose="", capo_fret=0):
c = Chord(ori_key)
c.transpose(-capo_fret)
return c
def generate_chord_prog(artist, key, start=None):
""" Generate chord progression
:param str artist: name of artist
:param str key: key scale
:param str s: chords what chord progression start with
:rtype: list[str]
:return: list of chord progression
"""
if key in major_keys:
ks = key
elif key in minor_keys:
ks = minor_major_keys.get(key)
else:
ks = "C"
# TODO: artistによって参照するモデルを変更するようにする
model_path = "daw/lib/result/chordnet.model"
n_unit = 256
# FIXME: 学習前段階でコード辞書をファイル化すべき
_, _, c2i, i2c = load_dataset()
eos_id = c2i[_EOS]
model = ChordNet(len(c2i), n_unit)
chainer.serializers.load_npz(model_path, model)
sChArr = []
if start:
for ch in start.split(" "):
try:
sChord = Chord(ch)
sChord.transpose(12 - note_to_val(ks), ks)
except ValueError:
pass
sChArr.append(sChord.chord)
while True:
s = _BOS + " " + " ".join(sChArr)
chord_ids = [c2i[ch] for ch in s.strip().split(" ")]
with chainer.using_config("train", False):
model.reset_state()
for chord_id in chord_ids[:-1]:
xs = Variable(np.array([chord_id], dtype=np.int32))
model(xs)
for i in range(_MAX_LEN):
xs = Variable(np.array([chord_ids[-1]], dtype=np.int32))
cid = sample(F.softmax(model(xs))[0].data)
# cid = np.argmax(F.softmax(model(xs))[0].data)
if cid == eos_id:
break
chord_ids.append(cid)
# print(' '.join([i2c[cid] for cid in chord_ids[1:]]))
chords = []
for cid in chord_ids[1:]:
try:
ch = Chord(i2c[cid])
ch.transpose(note_to_val(ks), ks)
chords.append(ch.chord)
except ValueError:
break
if len(chords) == _MAX_LEN:
break
elif len(chords) >= _MAX_LEN:
chords = chords[:_MAX_LEN]
break
return " ".join(chords)
def test_transpose_eq2(self):
c = Chord("C")
c.transpose(2)
self.assertEqual(c, Chord("D"))
def test_transpose_zero(self):
c = Chord("Am")
c.transpose(0)
self.assertEqual(c.root, "A")
self.assertEqual(c.quality.quality, "m")
def test_transpose_negative(self):
c = Chord("Am")
c.transpose(-4)
self.assertEqual(c.root, "F")
self.assertEqual(c.quality.quality, "m")
def test_transpose_positive(self):
c = Chord("Am")
c.transpose(3)
self.assertEqual(c.root, "C")
self.assertEqual(c.quality.quality, "m")
def generate_chord_prog(artist, key, start=None):
""" Generate chord progression
:param str artist: name of artist
:param str key: key scale
:param str start: chords what chord progression start with
:rtype: str
:return: chord progression
"""
if key in major_keys:
ks = key
elif key in minor_keys:
ks = minor_major_keys.get(key)
else:
ks = "C"
model_path = "daw/lib/models/chordnet.model"
if artists.get(artist):
model_path = model_path.replace('chordnet', artists.get(artist))
n_unit = 256
# ファイル化したコード辞書をロードする
c2i_path = 'daw/lib/dicts/chordnet_c2i.pkl'
i2c_path = 'daw/lib/dicts/chordnet_i2c.pkl'
if artists.get(artist):
c2i_path = c2i_path.replace('chordnet', artists.get(artist))
i2c_path = i2c_path.replace('chordnet', artists.get(artist))
with open(c2i_path, 'rb') as f:
c2i = pickle.load(f)
with open(i2c_path, 'rb') as f:
i2c = pickle.load(f)
eos_id = c2i[_EOS]
model = ChordNet(len(c2i), n_unit)
chainer.serializers.load_npz(model_path, model)
sChArr = []
if start:
for ch in start.split(" "):
try:
sChord = Chord(ch)
sChord.transpose(12 - note_to_val(ks), ks)
except ValueError:
pass
sChArr.append(sChord.chord)
while True:
s = _BOS + " " + " ".join(sChArr)
chord_ids = [c2i[ch] for ch in s.strip().split(" ")]
with chainer.using_config("train", False):
model.reset_state()
for chord_id in chord_ids[:-1]:
xs = Variable(np.array([chord_id], dtype=np.int32))
model(xs)
for i in range(_MAX_LEN):
xs = Variable(np.array([chord_ids[-1]], dtype=np.int32))
cid = sample(F.softmax(model(xs))[0].data)
# cid = np.argmax(F.softmax(model(xs))[0].data)
if cid == eos_id:
break
chord_ids.append(cid)
# print(' '.join([i2c[cid] for cid in chord_ids[1:]]))
chords = []
for cid in chord_ids[1:]:
try:
ch = Chord(i2c[cid])
ch.transpose(note_to_val(ks), ks)
chords.append(ch.chord)
except ValueError:
break
if len(chords) == _MAX_LEN:
break
elif len(chords) >= _MAX_LEN:
chords = chords[:_MAX_LEN]
break
return " ".join(chords)
def process( stringToProcess, processed):
global songHalfTones
#print 'String to process "' + stringToProcess + '".'
afterSplit = re.split(" |_|!|\.\.\.|\.\.|: |\*|high|open|bass|riff|palm mute|notes|m6|madd11/|m7add11/|7sus2|8|m7b5|madd13|add13", stringToProcess, 1) # 3rd parameter is maxsplit # Also works with single space, do this to catch faulty txt.
#print '* Split by delimiters "' + str(afterSplit) + '".'
#print 'songHalfTones:',songHalfTones
if len(afterSplit[0]) != 0:
chord = Chord(afterSplit[0])
#print '* Extracted "' + chord.chord + '" chord.'
chord.transpose( songHalfTones, "C#" )
#print '* Transposed to "' + chord.chord + '" chord.'
processed += chord.chord
#print '* Processed after chord "' + processed + '".'
#else:
#print '* No chord to extract.'
if len(afterSplit) == 1:
return processed
delimiterWas = ''
if len(afterSplit[1]) == 0:
delimiterWas = stringToProcess[len(afterSplit[0]):]
else:
delimiterWas = stringToProcess[len(afterSplit[0]):-len(afterSplit[1])]
#print '* Delimiter was "' + delimiterWas + '".'
processed += delimiterWas
#print '* Processed after delimiter "' + processed + '".'
#print '* Still must process "' + afterSplit[1] + '".'
return process( afterSplit[1], processed )
