Function dropSilentNotes

dropSilentNotes(events: readonly NoteEvent[]): NoteEvent[]
Drop the notes that never sound.

A MIDI or DAW import routinely carries zero-length artefacts. Every entry point in this library ignores them, but a caller holding such an array still has to decide what to do with it before comparing note counts or indices; this is the one filter to apply.
Parameters
- events: readonly NoteEvent[]
  The note events to filter.
Returns NoteEvent[]
A new array containing only the notes with a positive duration.
Example
```
import { dropSilentNotes } from '@libraz/libcantus';
dropSilentNotes([{ pitch: 60, startBeat: 0, durationBeat: 0 }]); // []
```
- Defined in src/core/validation/index.ts:169