def count_scales():
# get all scales for every root note
diatonic_scales, harmonic_scales, melodic_scales, blues_scales = get_scales()
scale_cntr = Counter()
other_cntr = Counter()
for path, subdirs, files in os.walk(song_histo_folder):
for name in files:
_path = path.replace('\\', '/') + '/'
_name = name.replace('\\', '/')
song_histo = pickle.load(open(_path + _name, 'rb'))
key = mf.histo_to_key(song_histo, key_n)
if key in diatonic_scales:
scale_cntr['diatonic'] +=1
elif key in harmonic_scales:
scale_cntr['harmonic'] +=1
elif key in melodic_scales:
scale_cntr['melodic'] +=1
elif key[:-1] in blues_scales:
scale_cntr['blues'] +=1
else:
scale_cntr['other'] += 1
other_cntr[key] +=1
return scale_cntr, other_cntr
def count_keys():
key_cntr = Counter()
for path, subdirs, files in os.walk(song_histo_folder):
for name in files:
_path = path.replace('\\', '/') + '/'
_name = name.replace('\\', '/')
song_histo = pickle.load(open(_path + _name, 'rb'))
key = mf.histo_to_key(song_histo, key_n)
if key in key_cntr:
key_cntr[key] +=1
else:
key_cntr[key] = 1
return key_cntr
def shift_midi_files(song_histo_folder,tempo_folder,shifted_folder):
for path, subdirs, files in os.walk(song_histo_folder):
for name in files:
_path = path.replace('\\', '/') + '/'
_name = name.replace('\\', '/')
tempo_path = tempo_folder+_path[len(song_histo_folder):]
target_path = shifted_folder+_path[len(song_histo_folder):]
song_histo = pickle.load(open(_path + _name, 'rb'))
key = mf.histo_to_key(song_histo, key_n)
shift = get_shift(key)
_name = _name[:-7]
if shift != 'other':
if not os.path.exists(target_path):
os.makedirs(target_path)
try:
mf.shift_midi(shift, _name, tempo_path, target_path)
except (ValueError, EOFError, IndexError, OSError, KeyError, ZeroDivisionError) as e:
exception_str = 'Unexpected error in ' + name + ':\n', e, sys.exc_info()[0]
print(exception_str)
