def test_quantize_input(self):
# unquantized inputs (quarters note not exactly in time)
# (ticks per beat = 12)
midi_notes = [
midi2lily.MidiNote(0, 11, 60),
midi2lily.MidiNote(11, 24, 62),
midi2lily.MidiNote(24, 37, 64),
midi2lily.MidiNote(37, 48, 65),
midi2lily.MidiNote(48, 61, 67),
midi2lily.MidiNote(61, 73, 69),
midi2lily.MidiNote(73, 85, 71),
midi2lily.MidiNote(85, 96, 72)
]
context = midi2lily.ParseContext()
context.time_signature = midi2lily.TimeSignature(4, 4)
context.ticks_per_beat = 12
context.staff = midi2lily.Staff('\\new:')
# Setup quantizing to 16th note (or 3 ticks)
quantize_duration = midi2lily.Duration(Fraction(1, 16))
quantize_ticks = quantize_duration.get_ticks(12, 4)
file = self.build_file(midi_notes, context, quantize_ticks)
self.assertEqual(str(file),
self.get_expected('test-midi-files/scale.txt'))
def test_chords(self):
midi_notes = [
# c e g
midi2lily.MidiNote(0, 1, 60),
midi2lily.MidiNote(0, 1, 64),
midi2lily.MidiNote(0, 1, 67),
# f a c
midi2lily.MidiNote(1, 2, 65),
midi2lily.MidiNote(1, 2, 69),
midi2lily.MidiNote(1, 2, 72),
# g b d
midi2lily.MidiNote(2, 3, 67),
midi2lily.MidiNote(2, 3, 71),
midi2lily.MidiNote(2, 3, 74),
# c e g
midi2lily.MidiNote(3, 4, 72),
midi2lily.MidiNote(3, 4, 76),
midi2lily.MidiNote(3, 4, 79),
]
context = midi2lily.ParseContext()
context.time_signature = midi2lily.TimeSignature(4, 4)
context.ticks_per_beat = 1
context.staff = midi2lily.Staff('\\new:')
file = self.build_file(midi_notes, context)
self.assertEqual(str(file),
self.get_expected('test-midi-files/chords.txt'))
def test_c(self):
midi_notes = [midi2lily.MidiNote(0, 1, 60)]
context = midi2lily.ParseContext()
context.time_signature = midi2lily.TimeSignature(4, 4)
context.ticks_per_beat = 1
context.staff = midi2lily.Staff('\\new:')
file = self.build_file(midi_notes, context)
self.assertEqual(str(file), self.get_expected('test-midi-files/c.txt'))
def test_2_voices(self):
midi_notes = [
midi2lily.MidiNote(0, 2, 60),
midi2lily.MidiNote(0, 1, 64),
midi2lily.MidiNote(1, 2, 67)
]
context = midi2lily.ParseContext()
context.time_signature = midi2lily.TimeSignature(4, 4)
context.ticks_per_beat = 1
context.staff = midi2lily.Staff(':1')
file = self.build_file(midi_notes, context)
self.assertEqual(str(file),
self.get_expected('test-midi-files/polyphonic.txt'))
def test_file_with_staff_with_notes(self):
file = midi2lily.File("1")
staff = midi2lily.Staff("trumpet")
# TODO: hide children property
staff.add(
midi2lily.Note(midi2lily.Pitch(79),
midi2lily.Duration.get_duration(4, 4, 4)))
staff.add(
midi2lily.Note(midi2lily.Pitch(79),
midi2lily.Duration.get_duration(4, 4, 4)))
staff.add(
midi2lily.Note(midi2lily.Pitch(79),
midi2lily.Duration.get_duration(6, 4, 4)))
staff.add(
midi2lily.Note(midi2lily.Pitch(77),
midi2lily.Duration.get_duration(2, 4, 4)))
staff.add(
midi2lily.Note(midi2lily.Pitch(76),
midi2lily.Duration.get_duration(3, 4, 4)))
staff.add(
midi2lily.Note(midi2lily.Pitch(74),
midi2lily.Duration.get_duration(1, 4, 4)))
staff.add(
midi2lily.Note(midi2lily.Pitch(72),
midi2lily.Duration.get_duration(3, 4, 4)))
staff.add(
midi2lily.Note(midi2lily.Pitch(76),
midi2lily.Duration.get_duration(1, 4, 4)))
staff.add(
midi2lily.Note(midi2lily.Pitch(74),
midi2lily.Duration.get_duration(4, 4, 4)))
staff.add(
midi2lily.Note(midi2lily.Pitch(67),
midi2lily.Duration.get_duration(4, 4, 4)))
file.add(staff)
self.assertEqual(
str(file),
"\\version \"1\"\n\n\\new Staff = \"trumpet\" \\relative c' {\ng'4 g g4. f8 |\ne8. d16 c8. e16 d4 g, |\n}"
)
def test_four_voices_in_polyphonic_contexts_with_rests(self):
midi_notes = [
# voice 1
midi2lily.MidiNote(0, 4, 60),
# voice 2
midi2lily.MidiNote(1, 4, 64),
# voice 3
midi2lily.MidiNote(2, 4, 67),
midi2lily.MidiNote(3, 4, 70)
]
context = midi2lily.ParseContext()
context.time_signature = midi2lily.TimeSignature(4, 4)
context.ticks_per_beat = 1
context.staff = midi2lily.Staff(':1')
file = self.build_file(midi_notes, context)
self.assertEqual(str(file),
self.get_expected('test-midi-files/polyphonic5.txt'))
def test_polyphonic_context_between_non_polyphonic_contexts(self):
midi_notes = [
midi2lily.MidiNote(0, 2, 72),
midi2lily.MidiNote(0, 2, 64),
midi2lily.MidiNote(2, 4, 71),
midi2lily.MidiNote(2, 3, 67),
midi2lily.MidiNote(3, 4, 65),
midi2lily.MidiNote(4, 8, 72),
midi2lily.MidiNote(4, 8, 64)
]
context = midi2lily.ParseContext()
context.time_signature = midi2lily.TimeSignature(4, 4)
context.ticks_per_beat = 1
context.staff = midi2lily.Staff(':1')
file = self.build_file(midi_notes, context)
self.assertEqual(str(file),
self.get_expected('test-midi-files/polyphonic2.txt'))
def test_scale(self):
midi_notes = [
midi2lily.MidiNote(0, 1, 60),
midi2lily.MidiNote(1, 2, 62),
midi2lily.MidiNote(2, 3, 64),
midi2lily.MidiNote(3, 4, 65),
midi2lily.MidiNote(4, 5, 67),
midi2lily.MidiNote(5, 6, 69),
midi2lily.MidiNote(6, 7, 71),
midi2lily.MidiNote(7, 8, 72)
]
context = midi2lily.ParseContext()
context.time_signature = midi2lily.TimeSignature(4, 4)
context.ticks_per_beat = 1
context.staff = midi2lily.Staff('\\new:')
file = self.build_file(midi_notes, context)
self.assertEqual(str(file),
self.get_expected('test-midi-files/scale.txt'))
def test_two_voices_with_rests(self):
midi_notes = [
# voice 1
midi2lily.MidiNote(0, 4, 60),
midi2lily.MidiNote(4, 8, 60),
# voice 2
midi2lily.MidiNote(1, 2, 64),
midi2lily.MidiNote(2, 3, 72),
midi2lily.MidiNote(3, 4, 64),
midi2lily.MidiNote(5, 6, 64),
midi2lily.MidiNote(6, 7, 67),
midi2lily.MidiNote(7, 8, 64),
]
context = midi2lily.ParseContext()
context.time_signature = midi2lily.TimeSignature(4, 4)
context.ticks_per_beat = 2
context.staff = midi2lily.Staff(':1')
file = self.build_file(midi_notes, context)
self.assertEqual(str(file),
self.get_expected('test-midi-files/polyphonic6.txt'))
def test_staff_with_notes(self):
staff = midi2lily.Staff("trumpet")
note = midi2lily.Note(midi2lily.Pitch(60),
midi2lily.Duration.get_duration(1, 1, 4))
staff.add(note)
self.assertEqual(str(staff), "\\new Staff = \"trumpet\" {\nc\'4 }")
def test_empty_staff(self):
staff = midi2lily.Staff("trumpet")
self.assertEqual(str(staff), "\\new Staff = \"trumpet\" {\n}")