sim-lib-pitch-ratio

Exact positive musical ratio intervals with octave equivalence, prime-limit factor vectors, finite rank/unrank, cents/error helpers, and bounded approximation search. It also builds root-declared chord interval matrices, coverage summaries, generalized-mean chord costs, and lazy cycle-safe ratio relation trees.

Use this crate when a pitch interval must keep rational identity instead of collapsing to equal-tempered semitones or floating frequency ratios.