Most time working with a score you'll interact with an object called Musical event.
Musical event is a simultaneous sound of several notes of a same voice on a same track.
It can contain:
- 1 Single note
- 2 Group of notes with one stem
- 3 Chord
- 4 Rest
- 5 Empty placeholder (implicit rest)
The musical event should not be confused with a beat. Beat can either include a musical event or be a part of it.