-
Notifications
You must be signed in to change notification settings - Fork 5
/
Copy pathkeyboard2midi.py
135 lines (121 loc) · 5.18 KB
/
keyboard2midi.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
import numpy as np
from mido import Message, MidiFile, MidiTrack, MetaMessage
from IPython import embed
from random import *
import random
def sample(h, seed_ix, n):
"""
sample a sequence of integers from the model
h is memory state, seed_ix is seed letter for first time step
"""
x = np.zeros((vocab_size, 1))
x[seed_ix] = 1
ixes = []
for t in xrange(n):
h = np.tanh(np.dot(Wxh, x) + np.dot(Whh, h) + bh)
y = np.dot(Why, h) + by
p = np.exp(y) / np.sum(np.exp(y))
ix = np.random.choice(range(vocab_size), p=p.ravel())
x = np.zeros((vocab_size, 1))
x[ix] = 1
ixes.append(ix)
return ixes
def txt2notes(txt):
txt = txt.replace(' [', '\n \n[')
txt = txt.replace('] ', ']\n \n')
#txt = txt.replace(']\n', '\n')
txt_list = txt.split('\n')
txt_final = list()
for i in range(len(txt_list)):
#print txt_list[i]
if txt_list[i] == ' ':
txt_final.append(txt_list[i])
elif " " in txt_list[i] and "]" in txt_list[i] and "[" in txt_list[i]:
txt_cord = txt_list[i].replace('[', '\n[')
txt_cord = txt_cord.replace(']', ']\n')
txt_cor_list = txt_cord.split('\n')
for i in range(len(txt_cor_list)):
if " " in txt_cor_list[i] and "]" not in txt_cor_list[i] and "[" not in txt_cor_list[i]:
in_cord = txt_cor_list[i].split(' ')
for i in range(len(in_cord)):
txt_final.append(in_cord[i])
else:
txt_final.append(txt_cor_list[i])
else:
txt_final.append(txt_list[i])
return txt_final
model_file = open('rnn_midi_25_100_200000.dat', 'r')
model = np.load(model_file)
chars= model['chars']
#hprev= model['hprev']
hprev = np.zeros((100,1))
Wxh=model['Wxh']
Whh=model['Whh']
bh=model['bh']
by=model['by']
Why=model['Why']
vocab_size=model['vocab_size'][0]
char_to_ix = { ch:i for i,ch in enumerate(chars) }
ix_to_char = { i:ch for i,ch in enumerate(chars) }
char2note = {
'1':48,'!':49,'2':50,'@':51,'3':52,'4':53,'$':54,'5':55,'%':56,'6':57,
'^':58,'7':59,'8':60,'*':61,'9':62,'(':63,'0':64,'q':65,'Q':66,'w':67,
'W':68,'e':69,'E':70,'r':71,'t':72,'T':73,'y':74,'Y':75,'u':76,'i':77,
'I':78,'o':79,'O':80,'p':81,'P':82,'a':83,'s':84,'S':85,'d':86,'D':87,
'f':88,'g':89,'G':90,'h':91,'H':92,'j':93,'J':94,'k':95,'l':96,'L':97,
'z':98,'Z':99,'x':100,'c':101,'C':102,'v':103,'V':104,'b':105,'B':106,
'n':107,'m':108, '&':58, '#':51
}
init_char = random.choice(list(char2note))
sample_ix = sample(hprev, char_to_ix[' '], 400)
txt = ''.join(ix_to_char[ix] for ix in sample_ix)
txt = init_char + txt
txt = txt.replace('\n', ' ')
txt = txt.replace(' ', ' ')
mid = MidiFile()
track = MidiTrack()
mid.tracks.append(track)
program = randint(0, 79)
time = randint(40, 100)
track.append(Message('program_change', program=program)) # default piano
#txt = "wIPJJ [WrtIO] O [Yhl] v [iph] yQTE [WTT] [YTuPS] T [SPS] [O] [0EW] Q [WrqDG] r [^TP] [EIOaI] | P [Oa] E"
#txt_file = open('/home/dcervant/Desktop/music_sheets/index.html.1', 'r')
#txt = txt_file.read()
txt_list = txt.replace('\n', ' ')
txt_list = txt2notes(txt)
for i in range(len(txt_list)):
if len(txt_list[i]) > 1:
cord = txt_list[i]
if cord.startswith('[') and cord.endswith(']') and " " not in cord:
cord = cord.replace('[', '')
cord = cord.replace(']', '')
for k in range(0, len(cord)):
track.append(Message('note_on', note=char2note[cord[k]], velocity=62))
for k in range(0, len(cord)):
track.append(Message('note_off', note=char2note[cord[k]], velocity=0, time=time*2))
elif cord.startswith('[') and cord.endswith(']') and " " in cord:
cord = cord.replace('[', '')
cord = cord.replace(']', '')
cord = cord.replace(' ', '')
for k in range(0, len(cord)):
track.append(Message('note_on', note=char2note[cord[k]], velocity=100, time=time/4))
track.append(Message('note_off', note=char2note[cord[k]], velocity=0, time=time))
else:
for k in range(0, len(cord)):
if cord[k] in char2note:
track.append(Message('note_on', note=char2note[cord[k]], velocity=100, time=time*2))
track.append(Message('note_off', note=char2note[cord[k]], velocity=0, time=time*2))
elif cord[k] == ' ':
track.append(Message('note_on', note=0, velocity=0, time=time))
elif cord[k] == '|':
track.append(Message('note_on', note=0, velocity=0, time=time*2))
else:
if txt_list[i] == '|':
track.append(Message('note_on', note=0, velocity=0, time=time*2))
elif txt_list[i] == ' ':
track.append(Message('note_on', note=0, velocity=0, time=time))
elif txt_list[i] in char2note:
track.append(Message('note_on', note=char2note[txt_list[i]], velocity=100, time=time))
track.append(Message('note_off', note=char2note[txt_list[i]], velocity=0, time=time))
#track.append(Message('note_on', note=0, velocity=0, time=time))
mid.save('song1.mid')