def test_low_range(self):
ranges = PitchRange.create("A:0", "C:5")
for modality_type in SYSTEM_MODALITIES:
for validTone in ModalityFactory.create_modality(modality_type).get_valid_root_tones():
tonality = Tonality.create(modality_type, DiatonicFoundation.get_tone(validTone))
pitch_scale = PitchScale(tonality, ranges)
print('Scale {0} {1} on {2}: {3}'.format(validTone, modality_type.name, ranges,
','.join(map(get_symbol, pitch_scale.pitch_scale))))
scale_check(pitch_scale, tonality)
def test_book_examples(self):
modality = ModalityFactory.create_modality(ModalityType.Major)
assert modality is not None
modality = ModalityFactory.create_modality(
ModalityType.MajorPentatonic, 1)
assert modality is not None
my_modality = 'my_modality'
modality_type = ModalityType(my_modality)
incremental_interval_strs = [
'P:1', 'm:2', 'M:3', 'm:2', 'm:2', 'M:2', 'A:2'
]
modality_spec = ModalitySpec(modality_type, incremental_interval_strs)
ModalityFactory.register_modality(modality_type, modality_spec)
modality = ModalityFactory.create_modality(ModalityType(my_modality))
assert modality is not None
tones = modality.get_tonal_scale(DiatonicFoundation.get_tone('Eb'))
print('[{0}]'.format(','.join(
str(tone.diatonic_symbol) for tone in tones)))
def create(modality_type, diatonic_tone, modal_index=0):
"""
Constructor.
:param modality_type: ModalityType being used.
:param diatonic_tone: DiatonicTone being used as root.
:param modal_index: (origin 0), which of the tonality's tone is the actual root_tone.
"""
if isinstance(diatonic_tone, str):
base_diatonic_tone = DiatonicToneCache.get_tone(diatonic_tone)
else:
base_diatonic_tone = diatonic_tone
return Tonality(ModalityFactory.create_modality(modality_type, modal_index), base_diatonic_tone)
def test_pentatonic_minor_key(self):
pentatonic_modality = ModalityFactory.create_modality(
ModalityType.MinorPentatonic)
for key in pentatonic_modality.get_valid_root_tones():
scale = pentatonic_modality.get_tonal_scale(DiatonicTone(key))
print('{0} scale for {1} is [{2}]'.format(
pentatonic_modality.get_modality_name, key,
', '.join(dt.diatonic_symbol for dt in scale)))
incremental_intervals = build_incremental_intervals(scale)
assert incremental_intervals == pentatonic_modality.incremental_intervals
print('End test_pentatonic_minor_key')
def test_for_book(self):
tonality_a = Tonality(
ModalityFactory.create_modality(ModalityType.Major, 1), 'E')
tonality_b = Tonality.create(ModalityType.Major, 'E', 1)
tonality_c = Tonality.create_on_basis_tone('D', ModalityType.Major, 1)
print('{0}: [{1}]'.format(
tonality_a,
','.join(tone.diatonic_symbol for tone in tonality_a.annotation)))
print('{0}: [{1}]'.format(
tonality_b,
','.join(tone.diatonic_symbol for tone in tonality_b.annotation)))
print('{0}: [{1}]'.format(
tonality_c,
','.join(tone.diatonic_symbol for tone in tonality_c.annotation)))
def create_on_basis_tone(basis_tone, modality_type, modal_index=0):
diatonic_tone = DiatonicToneCache.get_tone(basis_tone) if isinstance(basis_tone, str) else basis_tone
raw_modality = ModalityFactory.create_modality(modality_type, 0)
scale = raw_modality.get_tonal_scale(diatonic_tone)
return Tonality.create(modality_type, scale[modal_index], modal_index)