Eyyy a rhythm game! I think you did a good job on this! It's a little out of sync, but I understand that it was probably quite fiddly to get it just right.
I get that hitting the right notes makes those particle effects, but I think it would have been clearer for players to know they hit a note if the notes just disappear completely at the same time as the particle effects happen. The way they carry on falling and fading away still makes it look like you missed the note!