acorde-analysis

Deterministic, explainable analysis primitives for acorde-core. The crate has no I/O, renderer, or host dependencies.

The capability slice labels chord-shaped pitch collections, records adjacent melodic intervals, and estimates major/minor keys from diatonic pitch coverage. Every result contains stable NoteAddr evidence and a rule identifier. Key estimation returns all tied best candidates, so relative-major/minor ambiguity is preserved instead of inventing a single key.

use acorde_analysis::analyze_chords;
use acorde_core::Score;

let result = analyze_chords(&Score::default());
assert!(result.chords.is_empty());