khodowany
57 lines
2.1 KiB
Python
57 lines
2.1 KiB
Python
"""One curated, deterministic composition policy; all times are quarter-note beats."""
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from __future__ import annotations
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import dataclasses
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import hashlib
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import json
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@dataclasses.dataclass(frozen=True)
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class Policy:
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acoustic_activity: float = 1.125
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electric_activity: float = 1.125
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active_occupancy: float = 0.925
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arrival_occupancy: float = 0.9
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weights: tuple[tuple[str, float], ...] = (('activity', 4), ('occupancy', 4), ('landmarks', 3), ('register', 1), ('contour', 1), ('connection', 1), ('repetition', 1), ('movement', 0.5), ('harmonic_exposure', 2), ('draft_preservation', 3), ('development', 2), ('direction', 1), ('join_coherence', 2), ('ending_integration', 2))
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beam_width: int = 64
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extensions: int = 32
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retrieval: int = 32
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alternatives: int = 4
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long_note: float = 2.0
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stopping_note: float = 1.0
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suspension_preparation: float = 0.5
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suspension_resolution: float = 1.0
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replan_attempts: int = 2
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anchor_lines: int = 8
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draft_frontier: int = 16
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phrase_alternatives: int = 8
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join_alternatives: int = 8
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revision_sweeps: int = 2
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revision_joins: int = 2
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refinement_alternatives: int = 4
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join_window: float = 2.0
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activity_deadband: float = 1.0
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occupancy_deadband: float = 0.1
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lead_activity_range: tuple[float, float] = (1.0, 1.5)
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lead_occupancy_range: tuple[float, float] = (0.85, 1.0)
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source_variations: int = 8
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chorus_frontier: int = 8
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theme_copy_threshold: float = 0.8
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theme_copy_beats: float = 8.0
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theme_copy_attacks: int = 4
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theme_seed_limit: int = 8
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theme_unit_alternatives: int = 8
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composition_version: str = 'thematic-recomposition-1'
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# Preserve the former default root seeds while decoupling them from policy edits.
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SEED_NAMESPACE = 'a85abb240d7cfa9d054375b654bcb5c23c746201fd4aed7acf81cb3f4ee720e1'
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DEFAULT = Policy()
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def describe():
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values = dataclasses.asdict(DEFAULT)
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identity = hashlib.sha256(json.dumps(values, sort_keys=True).encode()).hexdigest()
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return {'fingerprint': identity, 'seed_namespace': SEED_NAMESPACE, 'parameters': values}
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def stable_rank(seed, value):
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return hashlib.sha256((seed + repr(value)).encode()).hexdigest()
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