khodowany
54 lines
2.9 KiB
Python
54 lines
2.9 KiB
Python
from __future__ import annotations
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import pathlib
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import generator.accompaniment
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import generator.guitar
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import generator.musicxml
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import generator.parts
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import generator.rhythm
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import generator.scat
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import generator.score
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def practice_document(document: dict, part_type: str, *, rhythms: generator.rhythm.Library) -> dict:
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document = generator.parts.prepare_document(document, practice=True)
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plan = generator.accompaniment.plan_section(generator.score.source_staff(document)['measures'], rhythms, electric=False) if part_type == 'acoustic' else None
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return _practice_document(document, part_type, plan)
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def _practice_document(document: dict, part_type: str, plan: generator.accompaniment.Plan | None) -> dict:
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if part_type not in generator.parts.PART_TYPES:
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raise ValueError(f'unknown practice part: {part_type}')
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staff = generator.score.source_staff(document)
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previous = generator.accompaniment.carried_chords(staff['measures'])
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role = {'acoustic': 'accompaniment', 'electric': 'melody', 'vocal': 'vocal'}[part_type]
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if part_type == 'acoustic' and plan is None:
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raise ValueError('acoustic practice requires a rhythm plan')
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measures = [generator.parts.build_measure(m, f'measure-{i + 1}', role, part_type, previous[i], m.get('section_label', ''), plan.acoustic[i] if part_type == 'acoustic' else None) for i, m in enumerate(staff['measures'])]
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for measure in measures:
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for chord in measure['harmonies']:
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chord.pop('chord_optional', None)
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tuplets = generator.score.reidentify(measures, staff.get('tuplets', []))
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result = generator.score.make_arranged_document(document, staff, staff_id='staff-practice-' + part_type, staff_name=part_type.capitalize(), role='vocal' if part_type == 'vocal' else 'guitar', arrangement_part_type=part_type, measures=measures, tuplets=tuplets, octave_shifts=staff.get('octave_shifts', []) if role in ('melody', 'vocal') else [])
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if part_type == 'vocal':
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generator.scat.add_scat(result)
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else:
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generator.guitar.place_guitar(result)
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if generator.accompaniment.connect_continuations(result):
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generator.guitar.place_guitar(result)
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return result
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def generate_practice_scores(source_dir: pathlib.Path, output_dir: pathlib.Path, *, rhythms: generator.rhythm.Library) -> int:
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sources = generator.parts.source_paths(source_dir, practice=True)
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for path in sources:
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try:
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document = generator.parts.prepare_document(generator.musicxml.load_musicxml(path), practice=True)
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plan = generator.accompaniment.plan_section(generator.score.source_staff(document)['measures'], rhythms, electric=False)
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except ValueError as error:
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raise ValueError(f'{path}: {error}') from error
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for part in generator.parts.PART_TYPES:
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try:
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generator.score.write_json(output_dir / path.stem / (part + '.json'), _practice_document(document, part, plan))
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except ValueError as error:
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raise ValueError(f'{path}, part {part}: {error}') from error
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return len(sources) * len(generator.parts.PART_TYPES)
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