def separate_files():
for num, pattern in enumerate(patterns):
sequence = parse(pattern)
f = open("in_c_%s.mid" % (num + 1), "w")
s = SMF([sequence])
s.write(f)
f.close()
def test_velocity_from_note_with_invalid_velocities(self):
from sebastian.core import OSequence, Point
from sebastian.core import OFFSET_64, MIDI_PITCH, DURATION_64
test = OSequence([
Point({
OFFSET_64: o,
MIDI_PITCH: m,
DURATION_64: d
}) for (o, m, d) in [(0, 60, 16), (16, 72, 16), (32, 64, 16)]
])
test[0]['velocity'] = -1
test[1]['velocity'] = 300
from sebastian.midi.write_midi import SMF
from io import BytesIO
out_fd = BytesIO(bytearray())
expected_bytes = b'MThd\x00\x00\x00\x06\x00\x01\x00\x02\x00\x10MTrk\x00\x00\x00&\x00\xffX\x04\x04\x02\x18\x08\x00\xffY\x02\x00\x00\x00\xffQ\x03\x07\xa1 \x00\xff\x03\ttest song\x00\xff/\x00MTrk\x00\x00\x00\x1f\x00\xc0\x00\x00\x90<\x00\x10\x80<\x00\x00\x90H\xff\x10\x80H\x00\x00\x90@@\x10\x80@\x00\x00\xff/\x00'
s = SMF([test])
s.write(out_fd, title="test song")
actual_bytes = out_fd.getvalue()
self.assertEqual(expected_bytes, actual_bytes)
def one_file():
seq = OSequence([])
for num, pattern in enumerate(patterns):
seq = seq + parse(pattern) * 10
f = open("in_c_all.mid", "w")
s = SMF([seq])
s.write(f)
f.close()
def performance():
tracks = []
for track_num in range(8): # 8 tracks
seq = OSequence([])
for pattern in patterns:
seq += parse(pattern) * random.randint(2, 5) # repeat 2-5 times
tracks.append(seq | transpose(random.choice([-12, 0, 12]))) # transpose -1, 0 or 1 octaves
f = open("in_c_performance.mid", "w")
s = SMF(tracks)
s.write(f)
f.close()
def test_write_midi(self):
"""
Writing out test.mid to ensure midi processing works.
This isn't really a test.
"""
from sebastian.core import OSequence, Point
from sebastian.core import OFFSET_64, MIDI_PITCH, DURATION_64
test = OSequence([
Point({
OFFSET_64: o,
MIDI_PITCH: m,
DURATION_64: d
})
for (o, m,
d) in [(0, 60,
16), (16, 72,
16), (32, 64,
16), (48, 55,
16), (64, 74,
16), (80, 62,
16), (96, 50,
16), (112, 48,
16),
(128, 36,
16), (144, 24,
16), (160, 40,
16), (176, 55,
16), (192, 26,
16), (208, 38,
16), (224, 50,
16), (240, 48,
16)]
])
from sebastian.midi.write_midi import SMF
from io import BytesIO
out_fd = BytesIO(bytearray())
expected_bytes = b'MThd\x00\x00\x00\x06\x00\x01\x00\x02\x00\x10MTrk\x00\x00\x00%\x00\xffX\x04\x04\x02\x18\x08\x00\xffY\x02\x00\x00\x00\xffQ\x03\x07\xa1 \x00\xff\x03\x08untitled\x00\xff/\x00MTrk\x00\x00\x00\x87\x00\xc0\x00\x00\x90<@\x10\x80<\x00\x00\x90H@\x10\x80H\x00\x00\x90@@\x10\x80@\x00\x00\x907@\x10\x807\x00\x00\x90J@\x10\x80J\x00\x00\x90>@\x10\x80>\x00\x00\x902@\x10\x802\x00\x00\x900@\x10\x800\x00\x00\x90$@\x10\x80$\x00\x00\x90\x18@\x10\x80\x18\x00\x00\x90(@\x10\x80(\x00\x00\x907@\x10\x807\x00\x00\x90\x1a@\x10\x80\x1a\x00\x00\x90&@\x10\x80&\x00\x00\x902@\x10\x802\x00\x00\x900@\x10\x800\x00\x00\xff/\x00'
s = SMF([test], instruments=None)
s.write(out_fd)
actual_bytes = out_fd.getvalue()
self.assertEqual(expected_bytes, actual_bytes)
def test_write_midi_multi_tacks(self):
"""
Writing out test.mid to ensure midi processing works.
This isn't really a test.
"""
from sebastian.core import OSequence, Point
from sebastian.core import OFFSET_64, MIDI_PITCH, DURATION_64
test1 = OSequence([
Point({
OFFSET_64: o,
MIDI_PITCH: m,
DURATION_64: d
}) for (o, m, d) in [
(0, 60, 16),
(16, 72, 16),
(32, 64, 16),
(48, 55, 16),
]
])
test2 = OSequence([
Point({
OFFSET_64: o,
MIDI_PITCH: m,
DURATION_64: d
}) for (o, m, d) in [
(0, 55, 16),
(16, 55, 16),
(32, 64, 16),
(48 + 16, 55, 16 * 10),
]
])
from sebastian.midi.write_midi import SMF
from io import BytesIO
out_fd = BytesIO(bytearray())
expected_bytes = b"""MThd\x00\x00\x00\x06\x00\x01\x00\x03\x00\x10MTrk\x00\x00\x00&\x00\xffX\x04\x04\x02\x18\x08\x00\xffY\x02\x00\x00\x00\xffQ\x03\x07\xa1 \x00\xff\x03\ttest song\x00\xff/\x00MTrk\x00\x00\x00'\x00\xc0\x00\x00\x90<@\x10\x80<\x00\x00\x90H@\x10\x80H\x00\x00\x90@@\x10\x80@\x00\x00\x907@\x10\x807\x00\x00\xff/\x00MTrk\x00\x00\x00(\x00\xc1\x10\x00\x917@\x10\x817\x00\x00\x917@\x10\x817\x00\x00\x91@@\x10\x81@\x00\x10\x917@\x81 \x817\x00\x00\xff/\x00"""
s = SMF([test1, test2], instruments=[0, 16])
s.write(out_fd, title="test song")
actual_bytes = out_fd.getvalue()
self.assertEqual(expected_bytes, actual_bytes)
#!/usr/bin/env python
from sebastian.lilypond.interp import parse
from sebastian.midi.write_midi import SMF
rh = parse(r"""
\relative c'' {
g16 fis g8 ~ g16 d16 e fis g a b cis
d16 cis d8 ~ d16 a16 b cis d e fis d
g16 fis g8 ~ g16 fis16 e d cis e a, g
fis e d cis d fis a, g fis a d,8
}""")
lh = parse(r"""
\relative c {
g8 b'16 a b8 g g, g'
fis,8 fis'16 e fis8 d fis, d'
e,8 e'16 d e8 g a, cis'
d, fis16 e fis8 d d,
}""")
# operator overloading FTW!
seq = rh // lh
if __name__ == "__main__":
f = open("var1.mid", "w")
s = SMF([seq])
s.write(f)
f.close()
