def _apply_brahms_melodies_if_possible(
cantus_firmus: basic.SequentialEvent[music.NoteLike],
) -> basic.SequentialEvent[basic.SequentialEvent[music.NoteLike]]:
applied_brahms_melodies = basic.SequentialEvent([])
current_rest_duration = 0
last_bar_had_pitches = False
for current_bar, next_bar in zip(cantus_firmus, cantus_firmus[1:]):
if current_bar.pitch_or_pitches:
if current_rest_duration != 0:
applied_brahms_melodies.append(
basic.SequentialEvent([
music.NoteLike([], current_rest_duration +
fractions.Fraction(1, 4))
]))
current_rest_duration = 0
potential_brahms_melodies = _make_potential_brahms_melodies(
current_bar)
applied_brahms_melodies.append(
_select_from_potential_brahms_melodies(
potential_brahms_melodies, current_bar, next_bar))
last_bar_had_pitches = True
else:
if last_bar_had_pitches:
current_rest_duration -= fractions.Fraction(1, 4)
current_rest_duration += current_bar.duration
last_bar_had_pitches = False
applied_brahms_melodies.append(
basic.SequentialEvent(
[music.NoteLike([],
next_bar.duration - fractions.Fraction(1, 4))]))
return applied_brahms_melodies
def synthesize_applied_cantus_firmus(cantus_firmus: basic.SequentialEvent):
from mutwo.converters.frontends import midi
drone = basic.SequentialEvent([
music.NoteLike(
note.pitch_or_pitches[0] - pitches.JustIntonationPitch("2/1"),
note.duration,
) if note.pitch_or_pitches else note for note in cantus_firmus
])
melody = basic.SequentialEvent([])
for note in cantus_firmus:
if note.pitch_or_pitches:
pitches_cycle = itertools.cycle(sorted(note.pitch_or_pitches))
[
melody.append(
music.NoteLike(next(pitches_cycle),
fractions.Fraction(1, 6)))
for _ in range(int(note.duration * 6))
]
else:
melody.append(copy.copy(note))
for name, sequential_event in (("drone", drone), ("melody", melody)):
converter = midi.MidiFileConverter(
"builds/materials/applied_cantus_firmus_{}.mid".format(name))
converter.convert(
sequential_event.set_parameter("duration",
lambda duration: duration * 4,
mutate=False))
def _select_from_potential_brahms_melodies(
potential_brahms_melodies: typing.Tuple[basic.SequentialEvent, ...],
current_bar: music.NoteLike,
next_bar: music.NoteLike,
) -> basic.SequentialEvent[music.NoteLike]:
pitches_per_bar0, pitches_per_bar1 = (set(
map(lambda pitch: pitch.normalize(mutate=False).exponents,
pitch_or_pitches)) for pitch_or_pitches in (
current_bar.pitch_or_pitches,
next_bar.pitch_or_pitches,
))
common_pitches = tuple(
pitches.JustIntonationPitch(pitch)
for pitch in pitches_per_bar0.intersection(pitches_per_bar1))
is_last_pitch_connection_pitch_per_brahms_melody = tuple(
brahms_melody[-1].pitch_or_pitches[0].normalize(
mutate=False) in common_pitches
for brahms_melody in potential_brahms_melodies)
if any(is_last_pitch_connection_pitch_per_brahms_melody):
nth_melody_is_possible = is_last_pitch_connection_pitch_per_brahms_melody.index(
True)
return potential_brahms_melodies[nth_melody_is_possible]
else:
return basic.SequentialEvent(
[music.NoteLike([], current_bar.duration)])
def load_cantus_firmus():
import music21
m21_lasso_measures = music21.converter.parse(
# "ot2/analysis/data/lasso_cantus_firmus.mxl"
"ot2/analysis/data/lasso_adjusted_cantus_firmus.mxl"
)[1].getElementsByClass("Measure")
mutwo_lasso = basic.SequentialEvent([])
current_root_pitch = None
previous_event = None
melodic_pitch_counter = 0
for measure in m21_lasso_measures:
for event in measure:
if isinstance(event, music21.note.GeneralNote):
event_duration = fractions.Fraction(event.duration.quarterLength) / 4
if previous_event and previous_event.isRest and not event.isRest:
current_root_pitch = cantus_firmus_constants.START_PITCH_TO_ROOT[
event.pitch.name.lower()
]
if event.isRest:
melodic_pitch_counter = 0
mutwo_lasso.append(music.NoteLike([], event_duration))
else:
try:
ji_ratios = cantus_firmus_constants.INTERVALS[
melodic_pitch_counter
]
except IndexError:
ji_ratios = cantus_firmus_constants.INTERVALS[-1]
duration_per_ratio = event_duration / len(ji_ratios)
for ji_ratio in ji_ratios:
pitch = (
ji_ratio
+ current_root_pitch
- pitches.JustIntonationPitch("2/1")
)
note = music.NoteLike([pitch], duration_per_ratio)
mutwo_lasso.append(note)
melodic_pitch_counter += 1
previous_event = event
return mutwo_lasso
def imitate_melody(
melody_to_imitate: basic.SequentialEvent[music.NoteLike],
harmony: typing.Sequence[pitches.JustIntonationPitch],
) -> basic.SequentialEvent[music.NoteLike]:
melodic_pitches = tuple(pitch_or_pitches[0] for pitch_or_pitches in
melody_to_imitate.get_parameter("pitch_or_pitches")
if pitch_or_pitches)
transformed_pitches = iter(imitations.imitate(melodic_pitches, harmony))
imitated_melody = basic.SequentialEvent([
music.NoteLike(next(transformed_pitches), duration)
if original_pitch else music.NoteLike([], duration)
for original_pitch, duration in zip(
melody_to_imitate.get_parameter("pitch_or_pitches"),
melody_to_imitate.get_parameter("duration"),
)
])
return imitated_melody
def make_applied_cantus_firmus(
cantus_firmus: basic.SequentialEvent,
) -> basic.SequentialEvent[music.NoteLike]:
transitional_harmonies = _load_transitional_harmonies()
cantus_firmus = _process_cantus_firmus(cantus_firmus)
previous_pitch_or_pitches = None
applied_cantus_firmus = basic.SequentialEvent([])
roots = (cantus_firmus_constants.START_PITCH_TO_ROOT[start_pitch]
for start_pitch in "c e a c e a d g c e a".split(" "))
current_root = None
for pitch_or_pitches, next_pitch_or_pitches, duration in zip(
cantus_firmus.get_parameter("pitch_or_pitches"),
cantus_firmus.get_parameter("pitch_or_pitches")[1:] + (None, ),
cantus_firmus.get_parameter("duration"),
):
if pitch_or_pitches:
if current_root is None:
current_root = next(roots)
current_pitch = pitch_or_pitches[0]
previous_pitch = (previous_pitch_or_pitches[0]
if previous_pitch_or_pitches else current_pitch)
next_pitch = (next_pitch_or_pitches[0]
if next_pitch_or_pitches else current_pitch)
harmony = [
current_pitch + pitch
for pitch in transitional_harmonies[tuple(
(pitch - current_root).normalize(mutate=False).exponents
for pitch in (current_pitch, previous_pitch, next_pitch))]
]
# MAKE EVERYTHING MORE READABLE (go down to pitch 'e')
harmony = [
pitch - pitches.JustIntonationPitch('3/2') for pitch in harmony
]
event = music.NoteLike(harmony, duration)
else:
event = music.NoteLike([], duration)
current_root = None
applied_cantus_firmus.append(event)
previous_pitch_or_pitches = pitch_or_pitches
return applied_cantus_firmus
def _make_drone(
melody_part: typing.Tuple[typing.Tuple[
typing.Tuple[pitches.JustIntonationPitch, ...], fractions.Fraction,
typing.Optional[basic.SequentialEvent[music.NoteLike]], ], ..., ],
) -> basic.SequentialEvent[music.NoteLike]:
drone = basic.SequentialEvent([])
for harmony, duration, _ in melody_part:
drone.append(
music.NoteLike(harmony[0].register(-2, mutate=False),
duration))
drone[0].duration -= fractions.Fraction(1, 4)
drone[-1].duration += fractions.Fraction(1, 4)
return drone
def convert(
self,
tagged_simultaneous_event: ot2_basic.TaggedSimultaneousEvent[
basic.SimultaneousEvent[basic.SequentialEvent[music.NoteLike]]],
) -> abjad.Score:
staff_group = abjad.StaffGroup([])
duration = tagged_simultaneous_event.duration
for instrument_id in sorted(
tagged_simultaneous_event.tag_to_event_index.keys(),
key=lambda tag: tagged_simultaneous_event.tag_to_event_index[
tag],
):
converter = self._instrument_id_to_sequential_event_to_abjad_voice_converter[
instrument_id]
simultaneous_event = tagged_simultaneous_event[instrument_id]
staff = abjad.Staff([], simultaneous=True)
# staff.remove_commands.append("Time_signature_engraver")
for sequential_event in simultaneous_event:
difference = duration - sequential_event.duration
if difference:
sequential_event.append(music.NoteLike([], difference))
if instrument_id == instruments.ID_PERCUSSIVE:
sequential_event = self._prepare_percussion_sequential_event(
sequential_event)
abjad_voice = converter.convert(sequential_event)
if instrument_id not in (
instruments.ID_PERCUSSIVE,
instruments.ID_NOISE,
):
self._prepare_duration_line_voice(abjad_voice)
if instrument_id == instruments.ID_PERCUSSIVE:
self._prepare_percussion_voice(abjad_voice)
elif instrument_id == instruments.ID_DRONE:
self._prepare_drone_voice(abjad_voice)
elif instrument_id == instruments.ID_NOISE:
self._prepare_percussion_voice(abjad_voice)
self._prepare_voice(abjad_voice, instrument_id)
staff.append(abjad_voice)
staff_group.append(staff)
abjad_score = abjad.Score([staff_group])
return abjad_score
def _make_potential_brahms_melodies(
event: music.NoteLike, ) -> typing.Tuple[basic.SequentialEvent, ...]:
harmony = tuple(event.pitch_or_pitches)
if harmony and event.duration in (
fractions.Fraction(4, 2),
fractions.Fraction(8, 2),
):
if event.duration == 2:
used_melodies = (brahms.BRAHMS0.copy(), brahms.BRAHMS1.copy())
used_melodies[1][4].duration = fractions.Fraction(1, 4)
used_melodies[1][7].duration = fractions.Fraction(1, 4)
used_melodies[0].set_parameter(
"duration",
lambda duration: duration * fractions.Fraction(2, 3))
used_melodies[1].set_parameter(
"duration",
lambda duration: duration * fractions.Fraction(2, 3))
used_melodies[0].insert(
0, music.NoteLike([], fractions.Fraction(1, 4)))
used_melodies[0][-1].duration = fractions.Fraction(1, 4)
used_melodies[1][0].duration = fractions.Fraction(1, 4)
used_melodies[1][-1].duration = fractions.Fraction(1, 4)
else:
used_melodies = (brahms.BRAHMS1.copy(), )
used_melodies[0].insert(
0, music.NoteLike([], fractions.Fraction(3, 4)))
potential_brahms_melodies = []
for melody_to_imitate in used_melodies:
potential_brahms_melodies.append(
zimmermann.events.imitate_melody(melody_to_imitate, harmony))
for potential_brahms_melody in potential_brahms_melodies:
_post_process_brahms_melody(potential_brahms_melody)
return tuple(potential_brahms_melodies)
else:
return tuple([])
def _get_possible_melodies_for_each_bar_to_fill(
self,
melody_part: typing.Tuple[typing.Tuple[
typing.Tuple[pitches.JustIntonationPitch, ...], fractions.Fraction,
typing.Optional[basic.SequentialEvent[music.NoteLike]], ], ..., ],
bars_to_fill: typing.Tuple[typing.Tuple[int, fractions.Fraction], ...],
) -> typing.Tuple[typing.Tuple[basic.SequentialEvent[music.NoteLike], ...],
...]:
possible_melodies_for_each_bar_to_fill = []
adjusted_bars_to_fill = []
for nth_bar, bar_duration in bars_to_fill:
cengkok_duration = int(bar_duration * 4)
use_four_beats = False
if cengkok_duration == 4:
cengkok_duration = 8
use_four_beats = True
available_cengkoks = cengkoks.CENGKOKS[cengkok_duration]
current_harmony = melody_part[nth_bar][0]
try:
next_harmony = melody_part[nth_bar + 1][0]
except IndexError:
next_harmony = None
possible_melodies = self._build_possible_melodies_for_bar(
available_cengkoks, current_harmony, next_harmony,
use_four_beats)
n_possible_melodies = len(possible_melodies)
if n_possible_melodies == 1:
self._event_blueprint[nth_bar] = possible_melodies[0]
elif n_possible_melodies > 0:
adjusted_bars_to_fill.append((nth_bar, bar_duration))
possible_melodies_for_each_bar_to_fill.append(
possible_melodies)
else:
self._event_blueprint[nth_bar] = basic.SequentialEvent([
music.NoteLike([], self._event_blueprint[nth_bar].duration)
])
return (
tuple(possible_melodies_for_each_bar_to_fill),
tuple(adjusted_bars_to_fill),
)
def load_cengkoks() -> basic.SequentialEvent[music.NoteLike]:
blueprint = basic.SequentialEvent([
basic.SequentialEvent([
music.NoteLike(
[], applied_cantus_firmus.APPLIED_CANTUS_FIRMUS.duration)
])
])
for path in os.listdir(PICKLE_PATH):
concatenated_path = f"{PICKLE_PATH}/{path}"
with open(concatenated_path, "rb") as f:
start_time, applied_melody = pickle.load(f)
blueprint.squash_in(start_time, applied_melody)
blueprint.tie_by(
lambda event0, event1: event0.pitch_or_pitches == event1.
pitch_or_pitches,
event_type_to_examine=basic.SimpleEvent,
)
return functools.reduce(operator.add, blueprint)
mutwo_pitch_to_abjad_pitch_converter=mutwo_abjad.MutwoPitchToHEJIAbjadPitchConverter()
)
lilypond_file = abjad.LilyPondFile(includes=["ekme-heji-ref-c.ily"])
for current_pitch, previous_pitch, next_pitch, solution, harmonicity in DATA:
movement_pitches = tuple(
pitches.JustIntonationPitch(exponents)
for exponents in (previous_pitch, current_pitch, next_pitch)
)
solution_pitches = tuple(
pitches.JustIntonationPitch(exponents) for exponents in solution
)
sequential_event = basic.SequentialEvent([])
for movement_pitch in movement_pitches:
sequential_event.append(
music.NoteLike(movement_pitch, fractions.Fraction(1, 3))
)
for solution_pitch in solution_pitches:
sequential_event.append(
music.NoteLike(solution_pitch, fractions.Fraction(1, 5))
)
voice = converter.convert(sequential_event)
abjad.attach(
abjad.Markup(
"\\teeny { movement: "
+ str(' - '.join(str(pitch.ratio) for pitch in movement_pitches))
+ ", harmonicity = "
+ str(round(harmonicity, 3))
+ " }",
def test_convert(self):
musical_data = ot2_basic.TaggedSimultaneousEvent(
[
basic.SimultaneousEvent([
basic.SequentialEvent([
music.NoteLike("1/1", 1, "pp"),
music.NoteLike("15/16", 1, "pp"),
music.NoteLike([], 0.5, "pp"),
music.NoteLike("16/15", 0.75, "p"),
music.NoteLike([], 1.25, "p"),
music.NoteLike("9/8", 1.5, "p"),
])
]),
basic.SimultaneousEvent([
basic.SequentialEvent([
music.NoteLike("5/8", 0.5, "pp"),
music.NoteLike("11/16", 1, "pp"),
music.NoteLike([], 1, "pp"),
music.NoteLike("3/4", 0.75, "p"),
music.NoteLike([], 0.25, "p"),
music.NoteLike("3/4", 0.75, "p"),
])
]),
basic.SimultaneousEvent([
basic.SequentialEvent([
music.NoteLike([], 0.75, "pp"),
music.NoteLike("11/9", 1, "pp"),
music.NoteLike("4/3", 1, "pp"),
music.NoteLike("3/2", 0.75, "ppp"),
music.NoteLike([], 0.75, "ppp"),
music.NoteLike("3/5", 0.75, "ppp"),
])
]),
basic.SimultaneousEvent([
basic.SequentialEvent([
music.NoteLike("1/4", 4, "pp"),
music.NoteLike([], 1, "pp"),
music.NoteLike("1/4", 1, "pp"),
]),
basic.SequentialEvent([
music.NoteLike([], 3, "pp"),
music.NoteLike("3/8", 2.5, "pp"),
music.NoteLike([], 0.5, "pp"),
]),
]),
basic.SimultaneousEvent([
basic.SequentialEvent([
music.NoteLike("g", 0.25, "pp"),
music.NoteLike("g", 0.5, "pp"),
music.NoteLike("g", 0.25, "pp"),
music.NoteLike("b", fractions.Fraction(1, 6), "pp"),
music.NoteLike("f", fractions.Fraction(1, 12), "pp"),
music.NoteLike("g", 1, "pp"),
music.NoteLike("f", 1, "pp"),
music.NoteLike("g", 1, "pp"),
music.NoteLike("g", 1, "pp"),
])
]),
basic.SimultaneousEvent(
[basic.SequentialEvent([music.NoteLike([], 6, "ppp")])]),
],
tag_to_event_index=instruments.INSTRUMENT_ID_TO_INDEX,
)
abjad_score_converter = ot2_abjad.TaggedSimultaneousEventToAbjadScoreConverter(
(
abjad.TimeSignature((4, 2)),
abjad.TimeSignature((4, 2)),
abjad.TimeSignature((4, 2)),
abjad.TimeSignature((4, 2)),
))
abjad_score = abjad_score_converter.convert(musical_data)
lilypond_file_converter = ot2_abjad.AbjadScoreToLilypondFileConverter()
lilypond_file = lilypond_file_converter.convert(abjad_score)
abjad.persist.as_pdf(lilypond_file,
"tests/converters/frontends/score_test.pdf")
is_addable = False
if is_addable:
try:
os.mkdir(chord_primes_path)
except FileExistsError:
pass
try:
os.mkdir(harmony_path)
except FileExistsError:
pass
sequential_event = basic.SequentialEvent([
music.NoteLike(pitch_variant_combination, 8, 0.25)
])
pitch_variant_name = "s{}cp{}h_{}_{}_DIFF_{}".format(
structural_prime,
str(chord_primes).replace(" ", ""),
harmony_name,
nth_pitch_variant_combination,
intervallv,
)
midi_file_converter = midi.MidiFileConverter(
"{}/{}.mid".format(harmony_path,
pitch_variant_name))
midi_file_converter.convert(sequential_event)
abjad_converter = mutwo_abjad.SequentialEventToAbjadVoiceConverter(
def _build_possible_melodies_for_bar(
self,
available_cengkoks: typing.Dict[int, typing.Tuple[typing.Tuple[
str, typing.Tuple[int, ...]]]],
current_harmony: typing.Tuple[pitches.JustIntonationPitch, ...],
next_harmony: typing.Optional[typing.Tuple[pitches.JustIntonationPitch,
...]],
use_four_beats: bool,
) -> typing.Tuple[basic.SequentialEvent[music.NoteLike], ...]:
def apply_octave_mark(pitch, octave_mark):
octave_mark = int(octave_mark)
oct_pitch = pitches.JustIntonationPitch([octave_mark])
return pitch + oct_pitch
if next_harmony:
exponents_per_bar0, exponents_per_bar1 = (tuple(
map(
lambda pitch: pitch.normalize(mutate=False).exponents,
pitch_or_pitches,
)) for pitch_or_pitches in (
current_harmony,
next_harmony,
))
common_exponents = tuple(
set(exponents_per_bar0).intersection(set(exponents_per_bar1)))
common_pitch_index = exponents_per_bar0.index(common_exponents[0])
else:
common_pitch_index = 0
seleh = (1, 2, 3, 4, 5, 6)[common_pitch_index]
seleh_is_four = False
if seleh == 4:
seleh_is_four = True
seleh = 3
cengkoks_to_use = available_cengkoks[seleh]
decodex = {
java_pitch_index: pitch
for java_pitch_index, pitch in zip("1 2 3 4 5 6".split(" "),
current_harmony)
}
pitch_converter = mmml.MMMLPitchesConverter(
mmml.MMMLSinglePitchConverter(
decodex,
apply_octave_mark,
))
possible_melodies = []
for cengkok_pitches, cengkok_rhythms in cengkoks_to_use:
cengkok_pitches = pitch_converter.convert(cengkok_pitches)
if seleh_is_four:
cengkok_pitches = cengkok_pitches[:-1] + (
(decodex["4"].register(cengkok_pitches[-1][0].octave,
mutate=False), ), )
melody = basic.SequentialEvent([
music.NoteLike(pitch, fractions.Fraction(rhythm, 4))
for pitch, rhythm in zip(cengkok_pitches, cengkok_rhythms)
])
if use_four_beats:
melody.cut_off(0, 1)
self._apply_vanitas_rhythm_grid_on_melody(melody)
def register_pitches0(pitch_or_pitches):
return [
pitch - pitches.JustIntonationPitch("2/1")
for pitch in pitch_or_pitches
]
def register_pitches1(pitch_or_pitches):
return [
pitch + pitches.JustIntonationPitch("2/1")
for pitch in pitch_or_pitches
]
melodies_to_add = (
melody,
melody.set_parameter("pitch_or_pitches",
register_pitches0,
mutate=False),
melody.set_parameter("pitch_or_pitches",
register_pitches1,
mutate=False),
)
for melody in melodies_to_add:
available_pitches = functools.reduce(
operator.add, melody.get_parameter("pitch_or_pitches"))
if (min(available_pitches) >= instruments.
AMBITUS_SUSTAINING_INSTRUMENTS_JUST_INTONATION_PITCHES.
borders[0] and max(available_pitches) <= instruments.
AMBITUS_SUSTAINING_INSTRUMENTS_JUST_INTONATION_PITCHES[
1]):
possible_melodies.append(melody)
return tuple(possible_melodies)
