def test_secondary_chord(self):
print('----- test_secondary_tonality -----')
diatonic_tonality = Tonality.create(ModalityType.Major,
DiatonicTone("C"))
chort_t_i = TertianChordTemplate.parse('tI')
chord_i = chort_t_i.create_chord(diatonic_tonality)
chord_v_ii = SecondaryChordTemplate.parse('V/ii').create_chord(
diatonic_tonality)
chord_vi_v = SecondaryChordTemplate.parse('vi/V').create_chord(
diatonic_tonality)
chord_t_ii = TertianChordTemplate.parse('tii')
chord_ii = chord_t_ii.create_chord(diatonic_tonality)
hc_track = HarmonicContextTrack()
hc_track.append(
HarmonicContext(diatonic_tonality, chord_i, Duration(1)))
hc_track.append(
HarmonicContext(diatonic_tonality, chord_v_ii, Duration(1)))
hc_track.append(
HarmonicContext(diatonic_tonality, chord_vi_v, Duration(1)))
hc_track.append(
HarmonicContext(diatonic_tonality, chord_ii, Duration(1)))
TestTFlip.print_hct(hc_track)
tune = [('C:5', (1, 1)), ('E:5', (1, 1)), ('E:5', (1, 1)),
('G:5', (1, 1))]
line = TestTFlip.build_line(tune)
cue = DiatonicPitch(5, 'd')
tflip = TDiatonicReflection(line, hc_track, cue)
temporal_extent = Interval(Fraction(0), Fraction(4))
score_line, score_hct = tflip.apply(temporal_extent, cue)
TestTFlip.print_notes(score_line)
TestTFlip.print_hct(score_hct)
notes = score_line.get_all_notes()
assert len(notes) == 4
assert str(notes[0].diatonic_pitch) == 'E:5'
assert str(notes[1].diatonic_pitch) == 'C#:5'
assert str(notes[2].diatonic_pitch) == 'C:5'
assert str(notes[3].diatonic_pitch) == 'A:4'
hc_list = score_hct.hc_list()
assert len(hc_list) == 4
assert hc_list[1].chord.primary_chord.chord_template.scale_degree == 7
assert {t[0].diatonic_symbol
for t in hc_list[1].chord.tones} == {'C#', 'E', 'G'}
assert hc_list[1].chord.primary_chord.chord_template.inversion == 3
assert hc_list[2].chord.primary_chord.chord_template.scale_degree == 7
assert {t[0].diatonic_symbol
for t in hc_list[2].chord.tones} == {'C', 'F#', 'A'}
assert hc_list[2].chord.primary_chord.chord_template.inversion == 3
def test_standards(self):
diatonic_tonality = Tonality.create(ModalityType.Major,
DiatonicTone("G"))
template = SecondaryChordTemplate.parse('V/ii')
print(template)
t_chord = template.create_chord(diatonic_tonality)
print(t_chord)
s = ', '.join(str(tone[0].diatonic_symbol) for tone in t_chord.tones)
print(s)
assert s == 'E, G#, B'
template = SecondaryChordTemplate.parse('V/IV')
print(template)
t_chord = template.create_chord(diatonic_tonality)
print(t_chord)
s = ', '.join(str(tone[0].diatonic_symbol) for tone in t_chord.tones)
print(s)
assert s == 'G, B, D'
diatonic_tonality = Tonality.create(ModalityType.Major,
DiatonicTone("G"))
template = SecondaryChordTemplate.parse('V/ii')
print(template)
t_chord = template.create_chord(diatonic_tonality)
print(t_chord)
s = ', '.join(str(tone[0].diatonic_symbol) for tone in t_chord.tones)
print(s)
assert s == 'E, G#, B'
diatonic_tonality = Tonality.create(ModalityType.Major,
DiatonicTone("Bb"))
template = SecondaryChordTemplate.parse('VI/ii')
print(template)
t_chord = template.create_chord(diatonic_tonality)
print(t_chord)
s = ', '.join(str(tone[0].diatonic_symbol) for tone in t_chord.tones)
print(s)
assert s == 'A, C, Eb'
def test_interesting(self):
diatonic_tonality = Tonality.create(ModalityType.Major,
DiatonicTone("F"))
template = SecondaryChordTemplate.parse('V/V[NaturalMinor]')
print(template)
t_chord = template.create_chord(diatonic_tonality)
print(t_chord)
s = ', '.join(str(tone[0].diatonic_symbol) for tone in t_chord.tones)
print(s)
assert s == 'G, Bb, D'
def test_sample(self):
diatonic_tonality = Tonality.create(ModalityType.Major,
DiatonicTone("C"))
template = SecondaryChordTemplate.parse('qVIPPaa/iv[Major]')
print(template)
t_chord = template.create_chord(diatonic_tonality)
print(t_chord)
s = ', '.join(str(tone[0].diatonic_symbol) for tone in t_chord.tones)
print(s)
assert s == 'D, G, C, F#, B#'
template = SecondaryChordTemplate.parse('qIIIPPaa/V[MelodicMinor]')
print(template)
t_chord = template.create_chord(diatonic_tonality)
print(t_chord)
s = ', '.join(str(tone[0].diatonic_symbol) for tone in t_chord.tones)
print(s)
assert s == 'Bb, Eb, Ab, D, G#'
def test_book_examples(self):
diatonic_tonality = Tonality.create(ModalityType.Major,
DiatonicTone("A"))
template = SecondaryChordTemplate.parse('V/V')
if template:
print('succeeded')
chord = template.create_chord(diatonic_tonality)
print(chord)
else:
print("failed")
template = SecondaryChordTemplate.parse('III/II')
chord = template.create_chord(diatonic_tonality)
print(chord)
template = SecondaryChordTemplate.parse('CMaj7/II')
chord = template.create_chord(diatonic_tonality)
print(chord)
template = SecondaryChordTemplate.parse('V/V[NaturalMinor]')
chord = template.create_chord(diatonic_tonality)
print(chord)
template = SecondaryChordTemplate.parse('V/V[Phrygian]')
chord = template.create_chord(diatonic_tonality)
print(chord)
template = SecondaryChordTemplate.parse('QVIPPAP@2/V')
chord = template.create_chord(diatonic_tonality)
print(chord)
def test_secondary_chord(self):
print('----- test_secondary_tonality -----')
diatonic_tonality = Tonality.create(ModalityType.Major,
DiatonicFoundation.get_tone("C"))
chort_t_i = TertianChordTemplate.parse('tI')
chord_i = chort_t_i.create_chord(diatonic_tonality)
chord_v_ii = SecondaryChordTemplate.parse('V/ii').create_chord(
diatonic_tonality)
chord_vi_v = SecondaryChordTemplate.parse('vi/V').create_chord(
diatonic_tonality)
chord_t_ii = TertianChordTemplate.parse('tii')
chord_ii = chord_t_ii.create_chord(diatonic_tonality)
hc_track = HarmonicContextTrack()
hc_track.append(
HarmonicContext(diatonic_tonality, chord_i, Duration(1)))
hc_track.append(
HarmonicContext(diatonic_tonality, chord_v_ii, Duration(1)))
hc_track.append(
HarmonicContext(diatonic_tonality, chord_vi_v, Duration(1)))
hc_track.append(
HarmonicContext(diatonic_tonality, chord_ii, Duration(1)))
TestTChromaticFlip.print_hct(hc_track)
tune = [('C:5', (1, 1)), ('E:5', (1, 1)), ('E:5', (1, 1)),
('G:5', (1, 1))]
line = TestTChromaticFlip.build_line(tune)
cue = DiatonicPitch(5, 'd')
tflip = TChromaticReflection(line, hc_track, cue)
score_line, score_hct = tflip.apply()
TestTChromaticFlip.print_notes(score_line)
TestTChromaticFlip.print_hct(score_hct)
def generic_chord_template_parse(chord_txt):
"""
Generic text parse into chord template.
Args:
chord_txt: String
Returns:
ChordTemplate or None if fails.
"""
# Try parsing chord text through known chord templates.
# If all fail, just return None.
from harmonicmodel.secondary_chord_template import SecondaryChordTemplate, SecondaryChordException
try:
chord_template = SecondaryChordTemplate.parse(chord_txt)
return chord_template
except SecondaryChordException:
pass
from harmonicmodel.tertian_chord_template import TertianChordTemplate, TertianChordException
try:
chord_template = TertianChordTemplate.parse(chord_txt)
return chord_template
except TertianChordException:
pass
from harmonicmodel.secundal_chord_template import SecundalChordTemplate, SecundalChordException
try:
chord_template = SecundalChordTemplate.parse(chord_txt)
return chord_template
except SecundalChordException:
pass
from harmonicmodel.quartal_chord_template import QuartalChordTemplate
try:
chord_template = QuartalChordTemplate.parse(chord_txt)
return chord_template
except QuartalChordTemplate:
return None