khodowany
21 lines
1.0 KiB
Python
21 lines
1.0 KiB
Python
import fractions
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import functools
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import generator.rhythm
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@functools.cache
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def library() -> generator.rhythm.Library:
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snippets = []
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for beats in (2, 3, 4, 5):
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bars = []
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for mask in range(1 << beats):
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events = tuple(generator.rhythm.Event(fractions.Fraction(i), fractions.Fraction(1), bool(mask & (1 << i)), 'quarter') for i in range(beats))
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bar = generator.rhythm.Bar(events, fractions.Fraction(beats))
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bars.append(bar)
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snippets.append(generator.rhythm.Snippet(f'{beats}-4/quarters/{mask}', f'{beats}/4', (bar,)))
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for phase in (0, 1):
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events = tuple(generator.rhythm.Event(fractions.Fraction(i, 2), fractions.Fraction(1, 2), i % 2 == phase, 'eighth') for i in range(beats * 2))
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snippets.append(generator.rhythm.Snippet(f'{beats}-4/eighths/{phase}', f'{beats}/4', (generator.rhythm.Bar(events, fractions.Fraction(beats)),)))
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snippets.append(generator.rhythm.Snippet(f'{beats}-4/pair', f'{beats}/4', (bars[1], bars[-1])))
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return generator.rhythm.Library(tuple(snippets))
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