- _on_event = copy._on_event;
- _off_event = copy._off_event;
-
- assert(time() == copy.time());
- assert(end_time() == copy.end_time());
- assert(note() == copy.note());
- assert(velocity() == copy.velocity());
- assert(length() == copy.length());
- assert(_on_event.channel() == _off_event.channel());
- assert(channel() == copy.channel());
-
- return *this;