def test_motif_book_example(self):
s = Beam()
s.append(Note(DiatonicPitch.parse('C:4'), Duration(1, 8)))
s.append(Note(DiatonicPitch.parse('D:4'), Duration(1, 8)))
s.append(Note(DiatonicPitch.parse('C:4'), Duration(1, 8)))
s.append(Note(DiatonicPitch.parse('F#:4'), Duration(1, 8)))
notes = s.get_all_notes()
c = [
EqualPitchConstraint([notes[0], notes[2]]),
NotEqualPitchConstraint([notes[1], notes[3]])
]
m = Motif(s, c, 'A')
cs = Beam()
cs.append(Note(DiatonicPitch.parse('C:5'), Duration(1, 8)))
cs.append(Note(DiatonicPitch.parse('D:5'), Duration(1, 8)))
cs.append(Note(DiatonicPitch.parse('C:5'), Duration(1, 8)))
cs.append(Note(DiatonicPitch.parse('F#:5'), Duration(1, 8)))
c_motif = m.copy_to(cs.get_all_notes()[0])
assert 'A' == c_motif.name
assert len(c_motif.actors) == len(notes)
assert len(c_motif.constraints) == len(c)
assert isinstance(c_motif.constraints[0], EqualPitchConstraint)
assert c_motif.constraints[0].actors[0] == c_motif.actors[0]
assert c_motif.constraints[0].actors[1] == c_motif.actors[2]
assert isinstance(c_motif.constraints[1], NotEqualPitchConstraint)
assert c_motif.constraints[1].actors[0] == c_motif.actors[1]
assert c_motif.constraints[1].actors[1] == c_motif.actors[3]
def test_nested_notes(self):
note1 = Note(DiatonicPitch(4, 'c'), Duration(1, 8))
note2 = Note(DiatonicPitch(4, 'd'), Duration(1, 8))
note3 = Note(DiatonicPitch(4, 'e'), Duration(1, 16))
sub_beam = Beam([note1, note2, note3])
beam = Beam()
beam.append(Note(DiatonicPitch(4, 'f'), Duration(1, 8)))
beam.append(sub_beam)
beam.append(Note(DiatonicPitch(4, 'g'), Duration(1, 8)))
print(beam)
notes = beam.get_all_notes()
assert len(notes) == 5
assert notes[0].diatonic_pitch == DiatonicPitch(4, 'f')
assert notes[1].diatonic_pitch == DiatonicPitch(4, 'c')
assert notes[2].diatonic_pitch == DiatonicPitch(4, 'd')
assert notes[3].diatonic_pitch == DiatonicPitch(4, 'e')
assert notes[4].diatonic_pitch == DiatonicPitch(4, 'g')
assert notes[0].relative_position == Offset(0)
assert notes[1].relative_position == Offset(0)
assert notes[2].relative_position == Offset(1, 16)
assert notes[3].relative_position == Offset(1, 8)
assert notes[4].relative_position == Offset(9, 32)
TestBeam.print_all_notes(notes)
notes = sub_beam.get_all_notes()
TestBeam.print_all_notes(notes)
b = Beam()
b.append(beam)
notes = sub_beam.get_all_notes()
TestBeam.print_all_notes(notes)
assert notes[0].duration == Duration(1, 32)
assert str(notes[0].diatonic_pitch) == 'C:4'
sub_beam_prime = sub_beam.clone()
notes = sub_beam_prime.get_all_notes()
TestBeam.print_all_notes(notes)
assert notes[0].duration == Duration(1, 8)
assert str(notes[0].diatonic_pitch) == 'C:4'
beam_prime = beam.clone()
notes = beam_prime.get_all_notes()
TestBeam.print_all_notes(notes)
assert notes[0].duration == Duration(1, 8)
assert str(notes[0].diatonic_pitch) == 'F:4'
b_prime = b.clone()
notes = b_prime.get_all_notes()
TestBeam.print_all_notes(notes)
assert notes[0].duration == Duration(1, 16)
assert str(notes[0].diatonic_pitch) == 'F:4'
def test_simple_beam(self):
note = Note(DiatonicPitch(4, 'c'), Duration(1, 8))
beam = Beam([note])
print(beam)
assert beam.cardinality() == 1
assert beam.get_all_notes()[0].diatonic_pitch == DiatonicPitch(4, 'c')
notes = beam.get_all_notes()
assert len(notes) == 1
TestBeam.print_all_notes(notes)
def test_simple_beam_reverse(self):
print('test simple beam reverse')
a = Note(DiatonicPitch(3, 'a'), Duration(1, 8))
b = Note(DiatonicPitch(3, 'b'), Duration(1, 8))
c = Note(DiatonicPitch(3, 'c'), Duration(1, 8))
d = Note(DiatonicPitch(3, 'd'), Duration(1, 8))
beam = Beam([a, b, c, d])
print(beam)
beam.reverse()
print(beam)
notes = beam.get_all_notes()
assert notes is not None
assert len(notes) == 4
assert notes[0].diatonic_pitch == DiatonicPitch(3, 'd')
assert notes[1].diatonic_pitch == DiatonicPitch(3, 'c')
assert notes[2].diatonic_pitch == DiatonicPitch(3, 'b')
assert notes[3].diatonic_pitch == DiatonicPitch(3, 'a')
assert notes[0].relative_position == Offset(0)
assert notes[1].relative_position == Offset(1, 8)
assert notes[2].relative_position == Offset(1, 4)
assert notes[3].relative_position == Offset(3, 8)
def test_add_note_at_lower_level(self):
print('start test_add_note_at_lower_level')
sub_beam = Beam([
Note(DiatonicPitch(2, 'c'), Duration(1, 8)),
Note(DiatonicPitch(2, 'd'), Duration(1, 8))
])
beam = Beam([
Note(DiatonicPitch(3, 'c'), Duration(1, 8)), sub_beam,
Note(DiatonicPitch(3, 'd'), Duration(1, 8))
])
AbstractNote.print_structure(beam)
notes = beam.get_all_notes()
assert len(notes) == 4
assert beam.sub_notes[1].duration == Duration(1, 8)
assert beam.sub_notes[1].relative_position == Offset(1, 8)
assert beam.sub_notes[1].sub_notes[1].duration == Duration(1, 16)
assert beam.sub_notes[1].sub_notes[1].relative_position == Offset(
1, 16)
sub_beam.add(Note(DiatonicPitch(2, 'c'), Duration(1, 8)), 1)
AbstractNote.print_structure(beam)
assert beam.sub_notes[1].duration == Duration(3, 16)
assert beam.sub_notes[1].relative_position == Offset(1, 8)
assert beam.sub_notes[1].sub_notes[1].duration == Duration(1, 16)
assert beam.sub_notes[1].sub_notes[1].relative_position == Offset(
1, 16)
def test_absolute_position(self):
print('test absolute position')
a = Note(DiatonicPitch(4, 'a'), Duration(1, 8))
b = Note(DiatonicPitch(4, 'b'), Duration(1, 8))
c = Note(DiatonicPitch(4, 'c'), Duration(1, 8))
d = Note(DiatonicPitch(4, 'd'), Duration(1, 8))
tuplet = Tuplet(Duration(1, 8), 3, [a, b, c, d])
e = Note(DiatonicPitch(4, 'e'), Duration(1, 8))
f = Note(DiatonicPitch(4, 'f'), Duration(1, 8))
g = Note(DiatonicPitch(4, 'g'), Duration(1, 8))
a1 = Note(DiatonicPitch(3, 'a'), Duration(1, 8))
sub_beam = Beam([e, f, g, a1])
b1 = Note(DiatonicPitch(3, 'b'), Duration(1, 8))
c1 = Note(DiatonicPitch(3, 'c'), Duration(1, 8))
d1 = Note(DiatonicPitch(3, 'd'), Duration(1, 8))
e1 = Note(DiatonicPitch(3, 'e'), Duration(1, 8))
beam = Beam([b1, tuplet, c1, sub_beam, d1, e1])
AbstractNote.print_structure(beam)
notes = beam.get_all_notes()
assert notes is not None
assert len(notes) == 12
results = [
Position(0),
Position(1, 8),
Position(7, 32),
Position(5, 16),
Position(13, 32),
Position(1, 2),
Position(5, 8),
Position(11, 16),
Position(3, 4),
Position(13, 16),
Position(7, 8),
Position(1)
]
index = 0
for n in notes:
print('{0} abs. position = {1}'.format(n,
n.get_absolute_position()))
assert n.get_absolute_position() == results[index]
index += 1
def test_multi_notes(self):
note0 = Note(DiatonicPitch(4, 'c'), Duration(1, 8))
note1 = Note(DiatonicPitch(4, 'd'), Duration(1, 8), 1)
note2 = Note(DiatonicPitch(4, 'e'), Duration(1, 16))
beam = Beam([note0, note1, note2])
print(beam)
assert beam.cardinality() == 3
notes = beam.get_all_notes()
assert notes[0].diatonic_pitch == DiatonicPitch(4, 'c')
assert notes[1].diatonic_pitch == DiatonicPitch(4, 'd')
assert notes[2].diatonic_pitch == DiatonicPitch(4, 'e')
assert beam.duration == Duration(3, 8)
assert notes[0].relative_position == Offset(0)
assert notes[1].relative_position == Offset(1, 8)
assert notes[2].relative_position == Offset(5, 16)
assert len(notes) == 3
TestBeam.print_all_notes(notes)
def test_insert_notes(self):
print('test_insert_notes')
# same as test_nested_notes
note1 = Note(DiatonicPitch(4, 'c'), Duration(1, 8))
note2 = Note(DiatonicPitch(4, 'd'), Duration(1, 8))
note3 = Note(DiatonicPitch(4, 'e'), Duration(1, 16))
sub_beam = Beam([note1, note2, note3])
beam = Beam()
beam.append(Note(DiatonicPitch(4, 'f'), Duration(1, 8)))
beam.append(sub_beam)
beam.append(Note(DiatonicPitch(4, 'g'), Duration(1, 8)))
AbstractNote.print_structure(beam)
# add a beam
n_list = [
Note(DiatonicPitch(3, 'c'), Duration(1, 8)),
Note(DiatonicPitch(3, 'd'), Duration(1, 8))
]
add_beam = Beam(n_list)
sub_beam.add(add_beam, 1)
print(beam)
AbstractNote.print_structure(beam)
notes = beam.get_all_notes()
assert len(notes) == 7
TestBeam.print_all_notes(notes)
assert notes[0].diatonic_pitch == DiatonicPitch(4, 'f')
assert notes[1].diatonic_pitch == DiatonicPitch(4, 'c')
assert notes[2].diatonic_pitch == DiatonicPitch(3, 'c')
assert notes[3].diatonic_pitch == DiatonicPitch(3, 'd')
assert notes[4].diatonic_pitch == DiatonicPitch(4, 'd')
assert notes[5].diatonic_pitch == DiatonicPitch(4, 'e')
assert notes[6].diatonic_pitch == DiatonicPitch(4, 'g')
assert notes[0].relative_position == Offset(0)
assert notes[1].relative_position == Offset(0)
assert notes[2].relative_position == Offset(0)
assert notes[3].relative_position == Offset(1, 32)
assert notes[4].relative_position == Offset(1, 8)
assert notes[5].relative_position == Offset(3, 16)
assert notes[6].relative_position == Offset(11, 32)
def test_nested_structure_reverse(self):
print('test nested structure reverse')
a = Note(DiatonicPitch(4, 'a'), Duration(1, 8))
b = Note(DiatonicPitch(4, 'b'), Duration(1, 8))
c = Note(DiatonicPitch(4, 'c'), Duration(1, 8))
d = Note(DiatonicPitch(4, 'd'), Duration(1, 8))
tuplet = Tuplet(Duration(1, 8), 3, [a, b, c, d])
e = Note(DiatonicPitch(4, 'e'), Duration(1, 8))
f = Note(DiatonicPitch(4, 'f'), Duration(1, 8))
g = Note(DiatonicPitch(4, 'g'), Duration(1, 8))
a1 = Note(DiatonicPitch(3, 'a'), Duration(1, 8))
sub_beam = Beam([e, f, g, a1])
b1 = Note(DiatonicPitch(3, 'b'), Duration(1, 8))
c1 = Note(DiatonicPitch(3, 'c'), Duration(1, 8))
d1 = Note(DiatonicPitch(3, 'd'), Duration(1, 8))
e1 = Note(DiatonicPitch(3, 'e'), Duration(1, 8))
beam = Beam([b1, tuplet, c1, sub_beam, d1, e1])
AbstractNote.print_structure(beam)
beam.reverse()
AbstractNote.print_structure(beam)
notes = beam.get_all_notes()
assert notes is not None
assert len(notes) == 12
assert notes[0].diatonic_pitch == DiatonicPitch(3, 'e')
assert notes[1].diatonic_pitch == DiatonicPitch(3, 'd')
assert notes[2].diatonic_pitch == DiatonicPitch(3, 'a')
assert notes[3].diatonic_pitch == DiatonicPitch(4, 'g')
assert notes[4].diatonic_pitch == DiatonicPitch(4, 'f')
assert notes[5].diatonic_pitch == DiatonicPitch(4, 'e')
assert notes[6].diatonic_pitch == DiatonicPitch(3, 'c')
assert notes[7].diatonic_pitch == DiatonicPitch(4, 'd')
assert notes[8].diatonic_pitch == DiatonicPitch(4, 'c')
assert notes[9].diatonic_pitch == DiatonicPitch(4, 'b')
assert notes[10].diatonic_pitch == DiatonicPitch(4, 'a')
assert notes[11].diatonic_pitch == DiatonicPitch(3, 'b')
def test_simple_motif(self):
s = Beam()
s.append(Note(DiatonicPitch.parse('C:4'), Duration(1, 8)))
s.append(Note(DiatonicPitch.parse('D:4'), Duration(1, 8)))
s.append(Note(DiatonicPitch.parse('E:4'), Duration(1, 8)))
s.append(Note(DiatonicPitch.parse('F#:4'), Duration(1, 8)))
notes = s.get_all_notes()
c = [
EqualPitchConstraint([notes[0], notes[2]]),
NotEqualPitchConstraint([notes[1], notes[3]])
]
m = Motif(s, c, 'A')
actors = m.actors
assert 'A' == m.name
assert len(actors) == len(notes)
cc = m.constraints
assert len(cc) == len(c)
assert isinstance(cc[0], EqualPitchConstraint)
cc_a = cc[0].actors
assert len(cc_a) == 2
assert cc_a[0] == actors[0]
assert cc_a[1] == actors[2]
assert isinstance(cc[1], NotEqualPitchConstraint)
cc_b = cc[1].actors
assert len(cc_a) == 2
assert cc_b[0] == actors[1]
assert cc_b[1] == actors[3]
assert 'F#:4' == str(actors[3].diatonic_pitch)
print(m)
cs = Beam()
first_note = Note(DiatonicPitch.parse('C:3'), Duration(1, 8))
cs.append(first_note)
cs.append(Note(DiatonicPitch.parse('D:3'), Duration(1, 8)))
cs.append(Note(DiatonicPitch.parse('E:3'), Duration(1, 8)))
cs.append(Note(DiatonicPitch.parse('F#:3'), Duration(1, 8)))
c_motif = m.copy_to(first_note)
c_actors = c_motif.actors
assert 'A' == c_motif.name
assert len(c_actors) == len(notes)
ccc = c_motif.constraints
assert len(ccc) == len(c)
assert isinstance(ccc[0], EqualPitchConstraint)
ccc_a = ccc[0].actors
assert len(ccc_a) == 2
assert ccc_a[0] == c_actors[0]
assert ccc_a[1] == c_actors[2]
assert isinstance(ccc[1], NotEqualPitchConstraint)
ccc_b = ccc[1].actors
assert len(ccc_a) == 2
assert ccc_b[0] == c_actors[1]
assert ccc_b[1] == c_actors[3]
assert 'F#:3' == str(c_actors[3].diatonic_pitch)
print(c_motif)
def test_tuplet_variations(self):
print('test tuplet variations')
# 1. Beam with 3 1/8 notes
note1 = Note(DiatonicPitch(4, 'c'), Duration(1, 8))
note2 = Note(DiatonicPitch(4, 'd'), Duration(1, 8))
note3 = Note(DiatonicPitch(4, 'd'), Duration(1, 8))
beam = Beam([note1, note2, note3])
AbstractNote.print_structure(beam)
notes = beam.get_all_notes()
assert len(notes) == 3
assert notes[0].duration == Duration(1, 8)
assert notes[1].duration == Duration(1, 8)
assert notes[2].duration == Duration(1, 8)
assert notes[0].relative_position == Offset(0)
assert notes[1].relative_position == Offset(1, 8)
assert notes[2].relative_position == Offset(1, 4)
# 2. beam with a tuplet
note1 = Note(DiatonicPitch(4, 'c'), Duration(1, 8))
note2 = Note(DiatonicPitch(4, 'd'), Duration(1, 8))
note3 = Note(DiatonicPitch(4, 'd'), Duration(1, 8))
tuplet = Tuplet(Duration(1, 8), 2, [note1, note2, note3])
beam = Beam([tuplet])
AbstractNote.print_structure(beam)
notes = beam.get_all_notes()
assert len(notes) == 3
assert notes[0].duration == Duration(1, 12)
assert notes[1].duration == Duration(1, 12)
assert notes[2].duration == Duration(1, 12)
assert notes[0].relative_position == Offset(0)
assert notes[1].relative_position == Offset(1, 12)
assert notes[2].relative_position == Offset(1, 6)
# 3. tuplet with a beam
note1 = Note(DiatonicPitch(4, 'c'), Duration(1, 8))
note2 = Note(DiatonicPitch(4, 'd'), Duration(1, 8))
note3 = Note(DiatonicPitch(4, 'd'), Duration(1, 8))
beam = Beam([note1, note2, note3])
tuplet = Tuplet(Duration(1, 8), 2, beam)
AbstractNote.print_structure(tuplet)
notes = beam.get_all_notes()
assert len(notes) == 3
assert notes[0].duration == Duration(1, 12)
assert notes[1].duration == Duration(1, 12)
assert notes[2].duration == Duration(1, 12)
assert notes[0].relative_position == Offset(0)
assert notes[1].relative_position == Offset(1, 12)
assert notes[2].relative_position == Offset(1, 6)
# 4. beam a beam of a tuplet
note1 = Note(DiatonicPitch(4, 'c'), Duration(1, 8))
note2 = Note(DiatonicPitch(4, 'd'), Duration(1, 8))
note3 = Note(DiatonicPitch(4, 'd'), Duration(1, 8))
tuplet = Tuplet(Duration(1, 8), 2, [note1, note2, note3])
sub_beam = Beam([tuplet])
beam = Beam(sub_beam)
AbstractNote.print_structure(beam)
notes = beam.get_all_notes()
assert len(notes) == 3
assert notes[0].duration == Duration(1, 24)
assert notes[1].duration == Duration(1, 24)
assert notes[2].duration == Duration(1, 24)
assert notes[0].relative_position == Offset(0)
assert notes[1].relative_position == Offset(1, 24)
assert notes[2].relative_position == Offset(1, 12)
def test_simple_form(self):
line = Line()
s = Beam()
s.append(Note(DiatonicPitch.parse('C:4'), Duration(1, 8)))
s.append(Note(DiatonicPitch.parse('D:4'), Duration(1, 8)))
s.append(Note(DiatonicPitch.parse('E:4'), Duration(1, 8)))
s.append(Note(DiatonicPitch.parse('F#:4'), Duration(1, 8)))
line.pin(s)
notes = s.get_all_notes()
c = [
EqualPitchConstraint([notes[0], notes[2]]),
NotEqualPitchConstraint([notes[1], notes[3]])
]
a = Motif(s, c, 'A')
s1 = [
Note(DiatonicPitch(4, 'c'), Duration(1, 8)),
Note(DiatonicPitch(4, 'd'), Duration(1, 8)),
Note(DiatonicPitch(4, 'e'), Duration(1, 8)),
]
tuplet = Tuplet(Duration(1, 8), 2, s1)
line.pin(tuplet, Offset(1, 2))
notes = tuplet.get_all_notes()
c1 = [
EqualPitchConstraint([notes[0], notes[2]]),
RelativeScalarStepConstraint(notes[1], notes[2], -2, 2)
]
b = Motif(tuplet, c1, 'B')
f = Form([a, b])
print(f)
constraints = [
EqualPitchConstraint([a.actors[0], b.actors[1]])
]
# Ensure a, b cloned for reliability - see comment in Form.
ff = Form([a, b], constraints)
print(ff)
constr = ff.external_constraints
assert len(constr) == 1
actors = ff.actors
assert len(actors) == 7
assert isinstance(constr[0], EqualPitchConstraint)
assert constr[0].actors[0] == actors[0]
assert constr[0].actors[1] == actors[4 + 1]
all_constr = ff.constraints
assert len(all_constr) == 5
# Add more notes to clone ff as:
s3 = Beam()
first_note = Note(DiatonicPitch.parse('C:5'), Duration(1, 8))
s3.append(first_note)
s3.append(Note(DiatonicPitch.parse('D:5'), Duration(1, 8)))
s3.append(Note(DiatonicPitch.parse('E:5'), Duration(1, 8)))
s3.append(Note(DiatonicPitch.parse('F#:5'), Duration(1, 8)))
line.pin(s3, Offset(3))
s2 = [
Note(DiatonicPitch(5, 'c'), Duration(1, 8)),
Note(DiatonicPitch(5, 'd'), Duration(1, 8)),
Note(DiatonicPitch(5, 'e'), Duration(1, 8)),
]
tuplet1 = Tuplet(Duration(1, 8), 2, s2)
line.pin(tuplet1, Offset(7, 2))
fff = ff.copy_to(first_note)
assert fff is not None
print(fff)
constr = fff.external_constraints
assert len(constr) == 1
assert len(fff.constraints) == 5
actors = fff.actors
assert len(actors) == 7
assert isinstance(constr[0], EqualPitchConstraint)
assert constr[0].actors[0] == actors[0]
assert constr[0].actors[1] == actors[4 + 1]
all_constr = fff.constraints
assert len(all_constr) == 5