def midi_to_note(filename=DEFAULT_MIDI_FILE, is_name=False, instrument_id=False):
'''
Load midi to note name list
'''
note_list = []
try:
midi_data = pretty_midi.PrettyMIDI(filename)
except IOError as ioe:
raise ValueError('PrettyMIDI - IOError: %s' % (ioe))
if instrument_id:
for note in midi_data.instruments[instrument_id].notes:
if is_name:
note_list.append(
pretty_midi.note_number_to_name(note.pitch))
else:
note_list.append(note)
else:
for instrument in midi_data.instruments:
if not instrument.is_drum:
for note in instrument.notes:
if is_name:
note_list.append(
pretty_midi.note_number_to_name(note.pitch))
else:
note_list.append(note)
return note_list
def find_midi_note_index(midi_notes, start, end, pitch, ornament=False):
"""
find corresponding midi note index for one xml note
Parameters
-----------
midi_notes : list of midi note object
start: midi start time in match_list
end : midi end time in match_list
pitch : midi pitch in match_list (in string)
ornament : whether it's ornament
Returns
-----------
dictionary of midi index and pitch
"""
pitch = check_pitch(pitch)
if not ornament:
for i, note in enumerate(midi_notes):
if (abs(note.start - start) < 0.001) and (abs(note.end - end) < 0.001) and (note.pitch == pretty_midi.note_name_to_number(pitch)):
return {'idx': i, 'pitch': pretty_midi.note_number_to_name(note.pitch)}
else:
for i, note in enumerate(midi_notes):
if (abs(note.start - start) < 0.001) and (abs(note.end - end) < 0.001) and (abs(note.pitch - pretty_midi.note_name_to_number(pitch)) <= 2):
return {'idx': i, 'pitch': pretty_midi.note_number_to_name(note.pitch)}
return -1
def chopster(dframe):
# Figure out range of frame (0-128)
df_max = dframe.max(axis=0)
dframe.drop(labels=[
pretty_midi.note_number_to_name(n) for n in range(m_midi_end, 128)
],
axis=1,
inplace=True)
dframe.drop(labels=[
pretty_midi.note_number_to_name(n) for n in range(0, m_midi_start)
],
axis=1,
inplace=True)
return dframe
def convert_midi_num_to_note_name(self, midi_num):
# midi note number & note name
# https://newt.phys.unsw.edu.au/jw/notes.html
if midi_num < 21 or midi_num > 108:
return ""
else:
return pretty_midi.note_number_to_name(int(midi_num))
def accompaniment_generator(outputpath, base_key, tempo, measure, n_passages):
"""
Attribute
outputpath: str, output file's path
base_key: int, midi-note-number
tempo: int
measure: int, recommend 3 or 4
n_passage: int, length of music
melody: boolean, generate melody or not
"""
assert base_key <= 60 and base_key >= 40, 'base_key is out of range'
passage_time = measure/(tempo/60) # passage time
# create a PrettyMIDI object
piano_chord = pm.PrettyMIDI(initial_tempo=tempo)
# create an Instrument instance for a cello instrument (defined in constants.py)
piano_program = pm.instrument_name_to_program('Orchestral Harp')
piano = pm.Instrument(program=piano_program)
INIT_STATE = 0
cur_state = INIT_STATE
chord_progression = []
for i in range(0, n_passages):
cur_state = get_next_state(STATE_PROB[cur_state])
chord = [note + base_key for note in chords[cur_state]]
put_rondo(piano, chord, i*passage_time, passage_time, 3)
chord_progression.append([pm.note_number_to_name(note) for note in chord])
piano_chord.instruments.append(piano)
piano_chord.write(outputpath)
return chord_progression
def __init__(self, csv_file, transform, midi_start=48, midi_end=108):
"""
Args:
csv_file (string): Path to the csv file with piano rolls per song.
transform (callable): Transform to be applied on a sample, is expected to implement "get_sections".
midi_start (int): The first midi note in the dataset
midi_end (int): The last midi note in the dataset
"""
dtypes = {'piano_roll_name': 'str', 'timestep': 'uint32'}
column_names = [
pretty_midi.note_number_to_name(n)
for n in range(midi_start, midi_end)
]
for column in column_names:
dtypes[column] = 'uint8'
self.piano_rolls = pd.read_csv(
csv_file,
sep=',',
index_col=['piano_roll_name', 'timestep'],
dtype=dtypes)
self.transform = transform
self.init_dataset()
def parse_track(self, track_num, is_solo=True):
"""
Parses the given track and returns a list of note objects
* Solo part will use Pitch enum for pitch
* Accompaniment parts will use midi number for pitch.
* Long notes > 4 beats will get split into 4 beats + the rest of the note.
:param track_num:
:param is_solo:
:return:
"""
notes = []
track = self.midi_file.tracks[track_num]
for i in range(1, len(track.events) - 1):
event = track.events[i]
delta_time = track.events[i + 1]
if delta_time.time is not None and delta_time.time > 1:
if event.type != self.NOTE_ON or event.velocity == 0:
pitch = Pitch.REST
else:
if is_solo:
pitch = Note.note_name_to_pitch_enum(
pretty_midi.note_number_to_name(event.pitch))
else:
pitch = event.pitch
num_beats = round(
delta_time.time / self.midi_file.ticksPerQuarterNote, 2)
while num_beats > 4: # while num beats is greater than beats left in bar.
notes.append(Note(pitch, Duration(4).value))
num_beats -= 4
if num_beats > 0:
notes.append(Note(pitch, Duration(num_beats).value))
return notes
def chord_notes(chord_name, octaves=[4]):
roots = chord_root(chord_name, octaves)
notes = chord_mode_offsets(chord_name)
n = []
for r in roots:
n += [pm.note_number_to_name(r + note) for note in notes]
return n
def get_midi_data(userNoteName, start, end):
print('Time for', userNoteName, 'got:', time.time())
if len(userNoteName) == 3:
userNoteName = userNoteName[0] + '#' + userNoteName[2]
primer = pretty_midi.PrettyMIDI()
instrument = pretty_midi.Instrument(
program=pretty_midi.instrument_name_to_program('Cello'))
noteNumber = pretty_midi.note_name_to_number(userNoteName)
try:
note = pretty_midi.Note(velocity=100,
pitch=noteNumber,
start=int(start),
end=int(start) + int(end))
except ValueError:
return []
instrument.notes.append(note)
primer.instruments.append(instrument)
output = generate_midi(primer, total_seconds=2) # Takes about 4-6 seconds
aiNotes = []
try:
note = output.instruments[0].notes[0]
notePitch, noteStart, noteEnd = pretty_midi.note_number_to_name(
note.pitch), note.start, note.end
if len(notePitch) == 3:
notePitch = notePitch[0] + 's' + notePitch[2]
aiNotes.append((notePitch, noteStart, noteEnd))
print('AI notes are', aiNotes)
return aiNotes
except IndexError:
return []
def compare_piano_rolls(piano_roll1,
piano_roll2,
crop=None,
title="",
time_grid=False,
show=False):
if crop:
labels = list(range(crop[0], crop[1]))
else:
labels = list(range(0, 128))
labels = [pm.note_number_to_name(x) for x in labels]
fig, [ax1, ax2] = plt.subplots(2, 1)
ax1.imshow(piano_roll1, aspect='auto', origin='lower')
ax1.set_yticks([x + 0.5 for x in list(range(len(labels)))])
ax1.set_yticklabels(labels, fontsize=5)
if time_grid:
ax1.set_xticks([x + 0.5 for x in list(range(piano_roll1.shape[1]))])
ax1.grid(True, axis='both', color='black')
else:
ax1.grid(True, axis='y', color='black')
plt.title(title)
ax2.imshow(piano_roll2, aspect='auto', origin='lower')
ax2.set_yticks([x + 0.5 for x in list(range(len(labels)))])
ax2.set_yticklabels(labels, fontsize=5)
if time_grid:
ax2.set_xticks([x + 0.5 for x in list(range(piano_roll2.shape[1]))])
ax2.grid(True, axis='both', color='black')
else:
ax2.grid(True, axis='y', color='black')
if show:
plt.show()
def print_data(data):
print('*' * 33)
print('melody for the data is:')
notes_per_line = 16
number_of_ts = len(data[0])
t = 0
while t < number_of_ts - 1:
for inst in range(INSTRUMENTS):
for i in range(notes_per_line):
onset = False
for pitch in range(128):
if not onset and t < number_of_ts and data[inst, t, pitch]:
note_name = pretty_midi.note_number_to_name(pitch)
sys.stdout.write('{} '.format(note_name))
if len(note_name) == 2:
sys.stdout.write(' ')
onset = True
if t < number_of_ts and data[inst, t, NUMBER_FEATURES - 3]:
sys.stdout.write('-- ')
if t < number_of_ts and data[inst, t, NUMBER_FEATURES - 2]:
sys.stdout.write('00 ')
t += 1
if inst != INSTRUMENTS - 1:
t -= notes_per_line
print()
print()
def __init__(self, in_note_on, in_clip_cursor):
self.is_playing = True
self.note = in_note_on.note
self.note_pretty = pretty_midi.note_number_to_name(self.note)
self.velocity = in_note_on.velocity
self.channel = in_note_on.channel
self._ticks_start = in_clip_cursor
pass
def create_midi_to_str(predicted_pitch, CREATED_FILE_NAME, OUTPUT_FOLDER):
new_name = CREATED_FILE_NAME
with open(OUTPUT_FOLDER + new_name + ".txt", "w+") as new_file:
for i in range(len(predicted_pitch)):
for pitch in predicted_pitch[i].split("-"):
note = pretty_midi.note_number_to_name(int(pitch))
new_file.write(note + " ")
def encode_dummies(instrument, sampling_freq):
""" Gonna cheat a little bit by transposing the instrument piano roll.
However, that leaves us with a lot of blank space.
Coercing to type uint8, since the max velocity is 127, and there are also only 128 notes. uint8 goes to 255.
Saves memory
"""
note_columns = [pretty_midi.note_number_to_name(n) for n in range(0, 128)]
pr = instrument.get_piano_roll(fs=sampling_freq).astype('uint8').T
return pd.DataFrame(pr, columns=note_columns)
def convert(val):
nbr = pretty_midi.hz_to_note_number(val)
frac = nbr % 1
base_note = int(nbr)
print(frac)
print(base_note)
notename = pretty_midi.note_number_to_name(base_note)
if frac > 0.25 and frac < 0.75:
if len(notename) == 2:
symb = '+'
if len(notename) == 3:
notename = pretty_midi.note_number_to_name(base_note + 1)
symb = 'd'
notename = notename[0] + symb + notename[1]
elif frac >= 0.75:
notename = pretty_midi.note_number_to_name(base_note + 1)
return notename
def check_pitch(pitch):
"""
check string pitch format and fix it
Parameters
-----------
pitch : midi string pitch
Returns
-----------
pitch : midi string pitch
"""
if len(pitch) == 4:
base_pitch_num = pretty_midi.note_name_to_number(pitch[0] + pitch[-1])
if pitch[1:3] == 'bb':
pitch = pretty_midi.note_number_to_name(base_pitch_num - 2)
if pitch[1:3] == '##':
pitch = pretty_midi.note_number_to_name(base_pitch_num + 2)
return pitch
def interval_exam(note_cnt=2):
notes = list()
std_number = pretty_midi.note_name_to_number('A4')
for i in range(note_cnt):
note = pretty_midi.note_number_to_name(std_number + randint(-12, 12))
while note in notes:
note = pretty_midi.note_number_to_name(std_number + randint(-12, 12))
notes.append(note)
play_exam(notes)
ans = [define.note_name_display[x] for x in notes]
ans = ' '.join(ans)
user_ans = input()
if ans == user_ans:
print('Correct!')
return True
else:
print('Wrong! Correct answer is: ' + ans)
return False
def __init__(self, midi_start=48, midi_end=108):
"""
Args:
midi_start (int): The first midi note in the dataset
midi_end (int): The last midi note in the dataset
"""
self.dtypes = {'piano_roll_name': 'object', 'timestep': 'uint32'}
self.column_names = [pretty_midi.note_number_to_name(n) for n in range(midi_start, midi_end)]
for column in self.column_names:
self.dtypes[column] = 'uint8'
def number_to_note(number):
"""
Extract note name from note number
:param number: index of note
:return: note name or "r" for rest
"""
if number == 128:
return 'r'
else:
return pretty_midi.note_number_to_name(number)
def getJSON(filename):
#songs=['../dataset/'+filename for filename in os.listdir('../dataset')]
mid=MidiFile(filename)
data=[]
for _,track in enumerate(mid.tracks):
abs_time=0
for msg in track:
abs_time+=msg.time
if(msg.type=='note_on'):
note=pretty_midi.note_number_to_name(msg.note)
a={'velocity':msg.velocity,'note':note,'time':abs_time}
data.append(a)
elif(msg.type=='note_off'):
note=pretty_midi.note_number_to_name(msg.note)
a={'velocity':0,'note':note,'time':abs_time}
data.append(a)
return data
def process_midi(midi_file):
print("processing " + midi_file)
csv_file = midi_file.replace(".mid", ".csv")
# Load MIDI file into PrettyMIDI object
midi_data = pretty_midi.PrettyMIDI(midi_file)
midi_list = []
with open(csv_file, mode='w') as output_file:
csv_writer = csv.writer(output_file, delimiter=',', quotechar='"', quoting=csv.QUOTE_MINIMAL)
csv_writer.writerow(["pitch", "start", "end", "duration", "velocity"])
for instrument in midi_data.instruments:
for note in instrument.notes:
midi_list.append(Note(note.pitch,note.start,note.end,note.duration,note.velocity))
midi_list.sort(key=attrgetter('start'))
for note in midi_list:
csv_writer.writerow([pretty_midi.note_number_to_name(note.pitch), "{:0>3.4f}".format(note.start), "{:0>3.4f}".format(note.end), "{:3.4f}".format(note.duration), note.velocity])
def update_inputs(instrument, technique):
techs = list(orchestra[instrument].keys())
techs = [{"label": i, "value": i} for i in techs]
if technique in list(orchestra[instrument].keys()):
tech = technique
else:
tech = list(orchestra[instrument].keys())[0]
dyns = list(orchestra[instrument][tech].keys())
dyns = [{"label": i, "value": i} for i in dyns]
notes = list(orchestra[instrument][tech]['p'].keys())
notes.sort()
notes = [{
"label": pretty_midi.note_number_to_name(int(i)),
"value": i
} for i in notes]
return [techs, notes, dyns]
def get_features(path):
file = pretty_midi.PrettyMIDI(path)
print(file)
tempo = file.get_beats()
n = pretty_midi.note_number_to_name(96)
roll = file.get_piano_roll(100)
features = [tempo]
#print(features)
print(n)
print(len(roll))
print(roll[0])
return features #normalize_features([tempo, num_sig_changes, resolution, ts_1, ts_2])
#get_features(path)
def making_tone_from_prob_and_prevtone(prev, tone_length, length, chord): diff = caliculate_tone_difference(length, tone_length) new_tone = "0" if prev == "0": new_tone = chord[0] new_tone = pretty_midi.note_name_to_number(new_tone) prev = new_tone else: prev = pretty_midi.note_name_to_number(prev) # 50%で音程が上下する if np.random.randint(0,1)==1: new_tone = prev+diff else: new_tone = prev-diff # 2: 50%で内音, 3:75%, 4:100%で内音に # if tone_length < np.random.randint(1, 4): # new_tone = change_to_inner_tone(chord ,new_tone) new_tone = pretty_midi.note_number_to_name(new_tone) return new_tone
def compare_piano_rolls(piano_roll1, piano_roll2, crop, title=""):
if crop:
labels = list(range(crop[0], crop[1] + 1))
else:
labels = list(range(0, 128))
labels = [pm.note_number_to_name(x) for x in labels]
plt.figure()
plt.subplot(211)
plt.imshow(piano_roll1, aspect='auto', origin='lower')
plt.yticks([x + 0.5 for x in list(range(len(labels)))], labels, fontsize=5)
ax = plt.gca()
ax.grid(True, axis='y', color='black')
plt.title(title)
plt.subplot(212)
plt.imshow(piano_roll2, aspect='auto', origin='lower')
plt.yticks([x + 0.5 for x in list(range(len(labels)))], labels, fontsize=5)
ax = plt.gca()
ax.grid(True, axis='y', color='black')
def _show_result_by_pretty_midi(pitches, pred_string, pred_position,
pred_finger):
print(
"pitch".ljust(9),
"".join([
pretty_midi.note_number_to_name(number).rjust(4)
for number in pitches
]),
)
print(
"string".ljust(9),
"".join([s.rjust(4) for s in pred_string]),
)
print(
"position".ljust(9),
"".join([p.rjust(4) for p in pred_position]),
)
print(
"finger".ljust(9),
"".join([f.rjust(4) for f in pred_finger]),
)
def update_inputs(instrument, technique):
techsl = list(orchestra[instrument].keys())
techs = [{"label": i, "value": i} for i in techsl]
score_techs = dbc.DropdownMenu(
[
dbc.DropdownMenuItem(
i, n_clicks=0, id=ddid('techs_l{}'.format(id), i))
for i in techsl
] #.insert(0, dbc.DropdownMenuItem("Woodwinds", header=True),)
,
label=technique,
caret=False,
id='tech_sel{}'.format(id),
color='#dde',
toggle_style={
'color': 'black',
'border': 'none',
'fontSize': 30
},
bs_size='sm',
style={
'bottom': -25,
'textAlign': 'center',
'paddingLeft': 15
})
if technique in list(orchestra[instrument].keys()):
tech = technique
else:
tech = list(orchestra[instrument].keys())[0]
dyns = list(orchestra[instrument][tech].keys())
dyns = [{"label": i, "value": i} for i in dyns]
notes = list(orchestra[instrument][tech]['p'].keys())
notes.sort()
notes = [{
"label": pretty_midi.note_number_to_name(int(i)),
"value": i
} for i in notes]
return [techs, notes, dyns, score_techs] #score_techs
def get_note_for_freq(f):
return pretty_midi.note_number_to_name(pretty_midi.hz_to_note_number(f))
def PreprocessMIDIPiano(midi_file: str, save_file: str, append_csv=False):
'''
Preprocess MIDI music file to data matrix for training
:param
midi_file:the name of the music file of MIDI format
save_file: the name of the saving file
:return:
'''
if not append_csv:
saved_columns = [
pretty_midi.note_number_to_name(n)
for n in range(m_midi_start, m_midi_end)
]
piano_rolls = pd.DataFrame(columns=['piano_roll_name', 'timestep'] +
saved_columns)
piano_rolls = piano_rolls.set_index(['piano_roll_name', 'timestep'])
piano_rolls.to_csv(save_file, sep=',', encoding='utf-8')
#Identify the music key: Major or Minor
#semi_shift = transposer(midi_file)
#print("shift")
#Read midi file
pm = pretty_midi.PrettyMIDI(midi_file)
#Get sample freqency for data matrix(piano roll) according to the Sixteenth note ??
sampling_freq = 1 / (pm.get_beats()[1] / 4)
# Only deal with the MIDI pieces that have one instrument as acoustic grand piano
#print(len(pm.instruments) == 1)
if len(pm.instruments) > 1:
raise Exception(
"Sorry, deal with the MIDI pieces that have one instrument")
instrument = pm.instruments[0]
#print(pretty_midi.program_to_instrument_name(int(instrument.program)))
#assert int(instrument.program) == 0
#if the music if a major, shift its scale to C major
#if the music if a minor, shift its scale to A minor
#for note in instrument.notes:
# note.pitch += semi_shift
#encode midi to data frame
df = encode_dummies(instrument, sampling_freq).fillna(value=0)
#cut the data to record the music note only from c3 to b7
df = chopster(df)
#trim the beginning empty sound track
df = trim_blanks(df)
#Ignore the strength(velocity) and regard the sound as one and non-sound as zero
df = minister(df)
#organize data frame and save
df.reset_index(inplace=True, drop=True)
df['timestep'] = df.index
df['piano_roll_name'] = midi_file
df = df.set_index(['piano_roll_name', 'timestep'])
#print(df.head())
df.to_csv(save_file, sep=',', mode='a', encoding='utf-8', header=False)
def score_graphs_from_graph_data(graph_data):
notenames = []
for i in range(128):
notenames.append(pretty_midi.note_number_to_name(i))
fig_layout = {
'title': 'Score',
'plot_bgcolor': 'black',
'paper_bgcolor': 'black',
'font': {
'color': 'white'
},
'xaxis': {
'title': 'Bar',
# 'rangeslider': {'visible': True},
# 'rangeselector': {'visible': True},
},
'yaxis': {
'tickmode': 'array',
'tickvals': np.arange(128),
'ticktext': notenames,
'range': [36, 96],
'nticks': 10,
'title': 'note'
},
'dragmode': 'pan',
# 'showscale': False,
# 'coloraxis_showscale': False
}
fig_config = {
'displayModeBar': False,
'scrollZoom': False,
# 'modeBarButtons':{'zoom3d':True}
}
trace_template = {
"type": "heatmap",
"zmin": 0,
"zmax": 1,
'showlegend': True,
'showscale': False,
# 'opacity': 0.5,
}
##DO GRAPHS
scale = 2 #calculated 1/scale values, i.e. 2 = 1/2 = 0.5
score_pianoroll = sc.Pianoroll(
id='pianoroll_graph',
stave_list=graph_data['stave_list'],
bar_offset=graph_data['bar_offset'][0],
width=len(graph_data['ticks_for_bar_start']) * 200 * scale,
height=(len(graph_data['instrument']) * 70 / scale) + 100,
scale=1 / scale,
stave_spacing=70)
score_pianoroll = html.Div(
children=score_pianoroll,
style={
'backgroundColor': '#eed',
'width':
(len(graph_data['ticks_for_bar_start']) * 200 + 100) / scale,
'height': (len(graph_data['instrument']) * 70 / scale) + 100
})
score_pianoroll = html.Div(
id='pianoroll_container',
children=[
html.Div(
'Score with the target at the top. The redness of the target means less audibility',
style={
'backgroundColor': '#eed',
'color': 'black',
'fontSize': 30,
'textAlign': 'center'
}), score_pianoroll
],
style={
'backgroundColor': '#eed',
'width': '100%',
'overflowX': 'auto'
})
score_pianoroll = html.Div([
dbc.Button('download score as PNG',
id='pianoroll_png',
block=True,
className='downloadpng',
size='sm'), score_pianoroll
])
fig_layout['xaxis']['tickmode'] = 'array'
fig_layout['xaxis']['tickvals'] = graph_data['ticks_for_bar_start']
fig_layout['xaxis']['ticktext'] = np.arange(len(graph_data['downbeats'][graph_data['bar_offset'][0]:graph_data['bar_offset'][1]])) + \
graph_data['bar_offset'][0] + 1 # Do the math to get the right text
#Set 3d camera direct above:
camera = dict(eye=dict(x=1 * 0.5, y=0., z=2.5 *
0.5) #Lower coefficient = bigger zoom
)
layout3d = {
'plot_bgcolor': 'black',
'paper_bgcolor': 'black',
'font': {
'color': 'white'
}, #'width': '1000', 'height': '500',
'scene': {
"aspectratio": {
"x": 1,
"y": 4,
"z": 0.5
},
'camera': camera,
},
#Layout template for 2d graphs
}
layout2d = {
'height': '300',
'plot_bgcolor': 'black',
'paper_bgcolor': 'black',
'font': {
'color': 'white'
},
}
tickvals_enhanced = []
k = 1
for i in range(graph_data['score_length']):
tickvals_enhanced.append(k)
if i + 1 in graph_data['ticks_for_bar_start']:
k += 1
#Do measure numbering for 2d graphs
layout2d['xaxis'] = dict()
layout2d['xaxis']['tickmode'] = 'array'
layout2d['xaxis']['tickvals'] = graph_data['ticks_for_bar_start']
layout2d['xaxis']['ticktext'] = np.arange(
len(graph_data['downbeats']
[graph_data['bar_offset'][0]:graph_data['bar_offset'][1]])
) + graph_data['bar_offset'][0] + 1 # Do the math to get the right text
#Do measure numbering for 3d graph
layout3d['scene']['yaxis'] = dict()
layout3d['scene']['yaxis']['title'] = 'Bar number'
layout3d['scene']['yaxis']['tickmode'] = 'array'
layout3d['scene']['yaxis']['tickvals'] = np.arange(
graph_data['score_length']) #ticks_for_bar_start
layout3d['scene']['yaxis'][
'ticktext'] = tickvals_enhanced #np.arange(len(midi_data.get_downbeats()[bar_offset[0]:bar_offset[1]])) + bar_offset[0] + 1 # Do the math to get the right text
layout3d['scene']['yaxis']['showgrid'] = True
layout3d['scene']['xaxis'] = dict()
layout3d['scene']['xaxis']['title'] = 'Critical band'
layout3d['scene']['xaxis']['tickvals'] = np.arange(107)
layout3d['scene']['xaxis']['ticktext'] = np.flip(constants.threshold[:, 0])
layout3d['scene']['xaxis']['title'] = 'Masking threshold in dB'
#layout3d['scene']['xaxis']['fixedrange'] = True
zoom_enable = dbc.FormGroup([
dbc.Checkbox(checked=False, id='zoom_enable'),
dbc.Label(' enable mouse scroll wheel zoom', html_for='zoom_enable')
],
style={'textAlign': 'center'})
graph3d = dcc.Graph(
id='3d_graph',
figure={
'data': [
go.Surface(
z=graph_data['orchestration_masking_curves'],
opacity=1,
reversescale=True,
colorscale='Spectral',
showscale=False,
name='Orchestration',
hovertemplate=
'Bar number: %{y}, Critical band: %{x}, Masking threshold %{z} dB'
),
go.Surface(
z=graph_data['target_peaks_over_masking'],
opacity=1,
colorscale='blugrn',
showscale=False,
name='Target',
hovertemplate=
'Bar number: %{y}, Critical band: %{x}, Excitation %{z} dB'
)
],
'layout':
layout3d
},
config=fig_config)
graph3d = html.Div([zoom_enable, graph3d])
x_axis = np.arange(graph_data['score_length'])
def set_id(number):
return {'type': 'a_graph', 'index': number}
layoutA = layout2d.copy()
layoutA['title'] = 'Target spectral peaks masked, in %'
masking_threshold_graph = dcc.Graph(
id=set_id(1),
figure={
'data': [
go.Scatter(
x=x_axis,
y=graph_data['target_masking_percent_array'],
fill='tozeroy',
name='Target audibility',
line={'color': 'olive'},
hovertemplate=
'%{y} percent of target peaks masked by orchestration')
],
'layout':
layoutA
},
config=fig_config)
masking_threshold_graph = html.Div([
html.Div(
'Click anywhere in the graph to show orchestration at current point',
style={'textAlign': 'center'}), masking_threshold_graph
])
orchestration_var_coeffs = np.array(graph_data['orchestration_var_coeffs'])
orchestration_var_coeffs[
orchestration_var_coeffs > 5] = 5 #Delete anomalies in var_coeff
layoutB = layout2d.copy()
layoutB[
'title'] = 'Orchestration variation coefficient (homogenuity of the orchestration)'
variation_coefficient_graph = dcc.Graph(
id=set_id(2),
figure={
'data': [
go.Scatter(x=x_axis,
y=orchestration_var_coeffs,
line={'color': 'sienna'},
fill='tozeroy',
name='Variation coefficient',
hovertemplate='Homogenuity coefficient: %{y}')
],
'layout':
layoutB
},
config=fig_config)
variation_coefficient_graph = html.Div([
html.Div(
'Click anywhere in the graph to show orchestration at current point',
style={'textAlign': 'center'}), variation_coefficient_graph
])
layoutC = layout2d.copy()
layoutC['title'] = 'Orchestration and target centroid comparison'
centroid_graph = dcc.Graph(
id=set_id(3),
figure={
'data': [
go.Scatter(x=x_axis,
y=graph_data['orchestration_centroids'],
name='Orchestration',
hovertemplate='Centroid: %{y}Hz'),
go.Scatter(x=x_axis,
y=graph_data['target_centroids'],
name='Target',
hovertemplate='Centroid: %{y}Hz')
],
'layout':
layoutC
},
config=fig_config)
centroid_graph = html.Div([
html.Div(
'Click anywhere in the graph to show orchestration at current point',
style={'textAlign': 'center'}), centroid_graph
])
layoutD = layout2d.copy()
layoutD['title'] = 'Orchestration and target color distance'
distance_graph = dcc.Graph(
id=set_id(4),
figure={
'data': [
go.Scatter(
x=x_axis,
y=graph_data['mfcc_distance_vector'],
fill='tozeroy',
line={'color': 'moccasin'},
name='Color distance',
hovertemplate='Target distance from orchestration: %{y}')
],
'layout':
layoutD
},
config=fig_config)
distance_graph = html.Div([
html.Div(
'Click anywhere in the graph to show orchestration at current point',
style={'textAlign': 'center'}), distance_graph
])
#masking3d=do3dgraph(midi_data, tgt, orchestration_pianoroll)
#Disable unnecessary graph for now
graph = dcc.Graph(
id='midi_graph',
figure={
'data': graph_data['all_traces'],
'layout': fig_layout
},
config=fig_config,
)
analyzed_material = graph_data['analyzed_material']
return [
score_pianoroll, masking_threshold_graph, variation_coefficient_graph,
centroid_graph, distance_graph, graph3d, graph, analyzed_material
]
dir = '2'
for dir_name in os.listdir(dir):
for filename in os.listdir(dir + os.sep + dir_name):
file_path = dir + os.sep + dir_name + os.sep + filename
with open(file_path, 'rt') as f:
try:
pm = pretty_midi.PrettyMIDI(file_path)
note_list.extend(pm.instruments[0].notes)
except:
continue
note_duration = []
note_pitch = []
for _ in note_list:
if _.end > _.start:
note_duration.append(round((_.end - _.start)*8))
note_pitch.append(pretty_midi.note_number_to_name(_.pitch)[:-1])
pitch_dist = leaders(note_pitch)
duration_dist = leaders(note_duration)
print('\n', dir_name)
for _, __ in enumerate(pitch_dist[3:] + pitch_dist[:3]):
print("({}, {})".format(_, __[1]), end='')
print('\n')
for _ in duration_dist:
if float(_[0]) <= 32:
print("({},{})".format(_[0], _[1]), end='')
#!/usr/local/bin/python
import sys
import pretty_midi
midi_data = pretty_midi.PrettyMIDI('drums.mid')
pr = midi_data.instruments[0].get_piano_roll().tolist()
pr_len = len(pr[0])
new_pr = []
print pr_len
for i in range(0,pr_len):
tmp_pr = []
for j in range(0,127):
if pr[j][i] > 0:
if midi_data.instruments[0].is_drum:
tmp_pr.append(pretty_midi.note_number_to_drum_name(j))
else:
tmp_pr.append(pretty_midi.note_number_to_name(j))
new_pr.append(tmp_pr)
print new_pr
# Synthesize the resulting MIDI data using sine waves
#audio_data = midi_data.synthesize()
print pretty_midi.note_name_to_number("C3")
