Function analyzeRhythm

analyzeRhythm(
notes: readonly NoteEvent[],
opts?: RhythmAnalysisOptions,
): RhythmAnalysis
How a line places its onsets against the meter: density, metric placement, interval spacing, rest, and Longuet-Higgins & Lee syncopation.

Onsets within 0.05 beat of one another read as one, and an onset further than 1/32 beat from the nearest twelfth-of-a-beat slot is read as off grid; every onset is moved to its nearest slot for everything downstream of it, so an unquantized line reads a real but reduced syncopation rather than a spurious one from a grid it never intended to sit on.
Parameters
- notes: readonly NoteEvent[]
  The line's notes, in any order. Notes that never sound (durationBeat <= 0) are dropped.
- opts: RhythmAnalysisOptions = {}
  Analysis options; see RhythmAnalysisOptions.
Returns RhythmAnalysis
The rhythm reading; see RhythmAnalysis.
Example
```
import { analyzeRhythm } from '@libraz/libcantus';
const rhythm = analyzeRhythm(
  [
    { pitch: 60, startBeat: 0, durationBeat: 1.5 },
    { pitch: 62, startBeat: 1.5, durationBeat: 2.5 },
  ],
  { ts: '4/4' },
);
rhythm.onsets; // 2
rhythm.syncopation > 0; // true
```
- Defined in src/analyze/rhythm/index.ts:363