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https://github.com/kennethreitz/interpretations.git
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kennethreitz
a9dbff25d3
Music Box Factory: G major, 108 BPM — 8 tuned percussion instruments. Kalimba, vibraphone, celesta, marimba, glockenspiel, xylophone, crotales, timpani. No synths, no strings. Cathedral: D minor, 60 BPM — tubular bells in taj_mahal, bagpipe drone, mellotron choir, timpani thunder, pipe organ, kick in cathedral reverb. Mellotron choir solo at the heart. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
336 lines
12 KiB
Python
336 lines
12 KiB
Python
"""
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CATHEDRAL — ancient stone, heavy air.
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Bagpipe drone, timpani thunder, mellotron choir, tubular bells.
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The sound of a building that has stood for a thousand years.
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D minor, 60 BPM.
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"""
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from pytheory import Key, Duration, Score, Tone, play_score
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from pytheory.rhythm import DrumSound
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key = Key("D", "minor")
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s = key.scale # D E F G A Bb C
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D = s[0]; E = s[1]; F = s[2]; G = s[3]
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A = s[4]; Bb = s[5]; C = s[6]
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score = Score("4/4", bpm=60)
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prog = key.progression("i", "iv", "VII", "i")
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prog2 = key.progression("i", "VI", "iv", "V")
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# ═══════════════════════════════════════════════════════════════════
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# STRUCTURE (64 bars, ~4:16):
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# Bars 1-8: Tubular bells alone — echoing in empty stone
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# Bars 9-16: Bagpipe drone — the ancient breath
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# Bars 17-24: Mellotron choir enters — voices from the walls
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# Bars 25-32: Timpani — the heartbeat of the building
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# Bars 33-40: Pipe organ — the full weight of God
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# Bars 41-48: All together — the cathedral sings
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# Bars 49-56: Mellotron choir solo — the most human moment
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# Bars 57-64: Bells alone again — the echo outlasts us all
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# ═══════════════════════════════════════════════════════════════════
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# ── TUBULAR BELLS — the space itself ──────────────────────────
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bells = score.part("bells", instrument="tubular_bells", volume=0.4,
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reverb=0.85, reverb_type="taj_mahal",
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delay=0.3, delay_time=1.0, delay_feedback=0.35,
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pan=0.15)
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# Bars 1-8: alone — one strike, let it ring, another
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bells.add(D.add(-12), Duration.WHOLE, velocity=65)
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bells.rest(Duration.WHOLE)
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bells.rest(Duration.WHOLE)
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bells.add(A.add(-12), Duration.WHOLE, velocity=58)
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bells.rest(Duration.WHOLE)
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bells.rest(Duration.WHOLE)
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bells.add(D.add(-12), Duration.WHOLE, velocity=62)
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bells.rest(Duration.WHOLE)
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# Bars 9-56: every 4 bars
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for section in range(12):
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vel = max(30, 60 - section * 2)
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bells.add(D.add(-12), Duration.WHOLE, velocity=vel)
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bells.rest(Duration.WHOLE)
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bells.rest(Duration.WHOLE)
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bells.rest(Duration.WHOLE)
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# Bars 57-64: alone again — the ending mirrors the beginning
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bells.add(D.add(-12), Duration.WHOLE, velocity=58)
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bells.rest(Duration.WHOLE)
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bells.rest(Duration.WHOLE)
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bells.add(A.add(-12), Duration.WHOLE, velocity=50)
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bells.rest(Duration.WHOLE)
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bells.rest(Duration.WHOLE)
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bells.add(D.add(-12), Duration.WHOLE, velocity=42)
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bells.rest(Duration.WHOLE)
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# ── BAGPIPE — the ancient drone, enters bar 9 ────────────────
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bagpipe = score.part("bagpipe", instrument="bagpipe", volume=0.2,
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reverb=0.45, reverb_type="cathedral",
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chorus=0.15, chorus_rate=0.08, chorus_depth=0.008,
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pan=-0.2, humanize=0.06)
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for _ in range(8):
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bagpipe.rest(Duration.WHOLE)
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# Bars 9-16: drone enters — D and A, the ancient fifth
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for vel in [25, 32, 38, 42, 45, 45, 42, 40]:
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bagpipe.add(D.add(-12), Duration.HALF, velocity=vel)
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bagpipe.add(A.add(-12), Duration.HALF, velocity=max(15, vel - 8))
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# Bars 17-40: melody emerges from the drone
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bagpipe_melody = [
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(D, Duration.HALF, 52), (E, Duration.QUARTER, 48),
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(F, Duration.QUARTER, 50),
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(G, Duration.HALF, 55), (F, Duration.QUARTER, 48),
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(E, Duration.QUARTER, 45),
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(D, Duration.WHOLE, 52),
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(None, Duration.HALF, 0), (A.add(-12), Duration.HALF, 48),
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]
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for _ in range(6):
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for note, dur, vel in bagpipe_melody:
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if note is None:
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bagpipe.rest(dur)
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else:
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bagpipe.add(note, dur, velocity=vel)
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# Bars 41-48: full power — drone + melody together
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bagpipe.set(volume=0.25)
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for _ in range(2):
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for note, dur, vel in bagpipe_melody:
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if note is None:
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bagpipe.rest(dur)
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else:
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bagpipe.add(note, dur, velocity=min(70, vel + 8))
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# Bars 49-56: drops to drone — choir takes over
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bagpipe.set(volume=0.15)
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for _ in range(8):
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bagpipe.add(D.add(-12), Duration.HALF, velocity=38)
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bagpipe.add(A.add(-12), Duration.HALF, velocity=30)
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# Bars 57-64: fading
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for vel in [32, 28, 22, 18, 14, 10, 5, 0]:
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if vel > 0:
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bagpipe.add(D.add(-12), Duration.WHOLE, velocity=vel)
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else:
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bagpipe.rest(Duration.WHOLE)
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# ── MELLOTRON CHOIR — voices from the stone, enters bar 17 ────
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choir = score.part("choir", instrument="mellotron_choir", volume=0.2,
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reverb=0.55, reverb_type="cathedral",
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chorus=0.2, chorus_rate=0.06, chorus_depth=0.01,
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pan=0.1, humanize=0.08)
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for _ in range(16):
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choir.rest(Duration.WHOLE)
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# Bars 17-24: slow chords — the walls start singing
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for _ in range(2):
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for chord in prog:
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choir.add(chord, Duration.WHOLE, velocity=40)
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# Bars 25-40: fuller
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for _ in range(4):
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for chord in prog:
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choir.add(chord, Duration.WHOLE, velocity=48)
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# Bars 41-48: peak — full voice
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choir.set(volume=0.28)
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for _ in range(2):
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for chord in prog2:
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choir.add(chord, Duration.WHOLE, velocity=58)
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# Bars 49-56: SOLO — the most human moment
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choir.set(volume=0.32)
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choir_melody = [
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(A, Duration.HALF, 62), (Bb, Duration.QUARTER, 58),
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(A, Duration.QUARTER, 55),
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(G, Duration.HALF, 60), (F, Duration.QUARTER, 55),
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(E, Duration.QUARTER, 52),
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(F, Duration.DOTTED_HALF, 62), (E, Duration.QUARTER, 55),
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(D, Duration.WHOLE, 58),
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(F, Duration.QUARTER, 60), (G, Duration.QUARTER, 58),
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(A, Duration.HALF, 65),
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(Bb, Duration.QUARTER, 60), (A, Duration.QUARTER, 58),
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(G, Duration.HALF, 55),
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(F, Duration.HALF, 52), (E, Duration.HALF, 55),
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(D, Duration.WHOLE, 58),
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]
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for note, dur, vel in choir_melody:
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choir.add(note, dur, velocity=vel)
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# Bars 57-64: fading — the voices retreat into stone
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for vel in [48, 42, 35, 28, 22, 15, 10, 0]:
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if vel > 0:
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choir.add(prog[0], Duration.WHOLE, velocity=vel)
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else:
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choir.rest(Duration.WHOLE)
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# ── TIMPANI — thunder, enters bar 25 ──────────────────────────
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timp = score.part("timpani", instrument="timpani", volume=0.5,
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reverb=0.4, reverb_type="cathedral",
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delay=0.08, delay_time=0.5, delay_feedback=0.1,
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pan=-0.1, humanize=0.06)
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for _ in range(24):
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timp.rest(Duration.WHOLE)
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# Bars 25-32: sparse, heavy — like thunder in stone
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timp.add(D.add(-12), Duration.WHOLE, velocity=75)
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timp.rest(Duration.WHOLE)
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timp.rest(Duration.WHOLE)
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timp.add(A.add(-24), Duration.WHOLE, velocity=68)
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timp.rest(Duration.WHOLE)
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timp.add(D.add(-12), Duration.HALF, velocity=72)
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timp.add(D.add(-12), Duration.HALF, velocity=65)
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timp.rest(Duration.WHOLE)
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timp.add(D.add(-12), Duration.WHOLE, velocity=78)
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# Bars 33-40: more active — rolls
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for bar in range(8):
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if bar % 4 == 3:
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# Timpani roll — 16th notes crescendo
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for i in range(16):
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timp.add(D.add(-12), Duration.SIXTEENTH, velocity=min(95, 50 + i * 3))
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else:
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timp.add(D.add(-12), Duration.QUARTER, velocity=72)
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timp.rest(Duration.DOTTED_HALF)
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# Bars 41-48: peak — full rolls + accents
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for bar in range(8):
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if bar % 2 == 1:
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for i in range(16):
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timp.add(D.add(-12), Duration.SIXTEENTH, velocity=min(100, 55 + i * 3))
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else:
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timp.add(D.add(-12), Duration.HALF, velocity=80)
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timp.rest(Duration.QUARTER)
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timp.add(A.add(-24), Duration.QUARTER, velocity=72)
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# Bars 49-56: sparse again — under choir solo
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for _ in range(4):
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timp.add(D.add(-12), Duration.WHOLE, velocity=55)
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timp.rest(Duration.WHOLE)
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# Bars 57-64: fading
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for vel in [48, 40, 32, 25, 0, 0, 0, 0]:
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if vel > 0:
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timp.add(D.add(-12), Duration.WHOLE, velocity=vel)
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else:
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timp.rest(Duration.WHOLE)
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# ── KICK — the deepest thunder, enters bar 25 ─────────────────
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K = DrumSound.KICK
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kick = score.part("kick", volume=0.7, humanize=0.03,
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reverb=0.3, reverb_type="cathedral",
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distortion=0.1, distortion_drive=2.0)
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for _ in range(24):
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kick.rest(Duration.WHOLE)
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# Bars 25-32: one hit per bar — synced with timpani
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for _ in range(8):
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kick.hit(K, Duration.QUARTER, velocity=95)
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kick.rest(Duration.DOTTED_HALF)
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# Bars 33-48: two hits per bar — heartbeat under the organ
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for _ in range(16):
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kick.hit(K, Duration.QUARTER, velocity=100)
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kick.rest(Duration.QUARTER)
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kick.hit(K, Duration.QUARTER, velocity=85)
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kick.rest(Duration.QUARTER)
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# Bars 49-56: sparse — under choir solo
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for _ in range(8):
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kick.hit(K, Duration.HALF, velocity=80)
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kick.rest(Duration.HALF)
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# Bars 57-64: fading
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for vel in [72, 60, 48, 35, 22, 0, 0, 0]:
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if vel > 0:
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kick.hit(K, Duration.QUARTER, velocity=vel)
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kick.rest(Duration.DOTTED_HALF)
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else:
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kick.rest(Duration.WHOLE)
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# ── PIPE ORGAN — the full weight, enters bar 33 ──────────────
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organ = score.part("organ", instrument="pipe_organ", volume=0.2,
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reverb=0.5, reverb_type="cathedral",
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chorus=0.1, chorus_rate=0.1, chorus_depth=0.005,
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pan=0.05)
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for _ in range(32):
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organ.rest(Duration.WHOLE)
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# Bars 33-48: hymn chords — the weight of the building
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for _ in range(4):
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for chord in prog:
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organ.add(chord, Duration.WHOLE, velocity=48)
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# Bars 49-56: sustains under choir solo
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organ.set(volume=0.15)
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for _ in range(2):
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for chord in prog:
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organ.add(chord, Duration.WHOLE, velocity=38)
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# Bars 57-64: fading
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for vel in [35, 30, 25, 20, 15, 10, 5, 0]:
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if vel > 0:
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organ.add(prog[0], Duration.WHOLE, velocity=vel)
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else:
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organ.rest(Duration.WHOLE)
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# ── MELLOTRON STRINGS — bed, enters bar 33 ────────────────────
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strings = score.part("strings", instrument="mellotron_strings", volume=0.12,
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reverb=0.45, reverb_type="cathedral",
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pan=-0.15)
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for _ in range(32):
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strings.rest(Duration.WHOLE)
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# Bars 33-56: tape strings — the warmth
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for _ in range(6):
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for chord in prog:
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strings.add(chord, Duration.WHOLE, velocity=42)
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# Bars 57-64: fading
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for vel in [35, 28, 22, 18, 12, 8, 0, 0]:
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if vel > 0:
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strings.add(prog[0], Duration.WHOLE, velocity=vel)
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else:
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strings.rest(Duration.WHOLE)
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# ── SUB — the stone floor vibrating ──────────────────────────
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sub = score.part("sub", synth="sine", envelope="pad", volume=0.3,
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lowpass=100, sub_osc=0.3)
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for _ in range(24):
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sub.rest(Duration.WHOLE)
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for _ in range(32):
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sub.add(D.add(-36), Duration.WHOLE, velocity=40)
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for vel in [35, 28, 22, 15, 10, 5, 0, 0]:
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if vel > 0:
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sub.add(D.add(-36), Duration.WHOLE, velocity=vel)
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else:
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sub.rest(Duration.WHOLE)
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# ═════════════════════════════════════════════════════════════════
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import sys
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print(f"Key: {key}")
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print(f"BPM: 60")
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print(f"Parts: {list(score.parts.keys())}")
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print(f"Duration: {score.duration_ms / 1000:.1f}s | {score.measures} measures")
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if "--live" in sys.argv:
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print("Playing CATHEDRAL (live engine)...")
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from pytheory_live.live import LiveEngine
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engine = LiveEngine(buffer_size=1024)
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engine.play_score(score)
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else:
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print("Playing CATHEDRAL...")
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play_score(score)
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