Thanks! I was tearing my hair out implementing it since there's no real intuitive way of notating chords other than doing it by hand.. I ended up creating a custom MIDI file with the same rhythms as the chords, but with a random arbitrary note, importing that into the game, and replacing every specific note with a corresponding string. That way, I had the timings correct, but I still needed to notate every chord by hand.. It was really exhausting work, but anything to stop those dirty cheesers from sitting at the edge of the piano!!
Still, I think I've notated it improperly since there are 4 NULL strings at the end LOL
Hopefully I find the motivation and time to fix it by the end of the jam!