What is the easiest way to put a midi file in reverse order (first note last, last note first)?

[hatgit]

Trying to find an easy way to put a midi file in reverse order (first note last, last note first)?

[hmoffatt]

Complicated, because you need to find the note off event for each note on event and then reorder the pairs. Also, what timing between notes do you want when this is reversed?

I suggest you search the web for algorithms. This has nothing to do with MIDI.js.