It seems like peppy wanted to go with a drum set, with the clap (snare basically) and finish (crash basically), but he didn't finish at all. It makes for hitsounding that could be way better and fitting the song. Sounds added would include: Tom 1-3, Bass, Hi-Hat Cymbal, Hi-Hat Control (yes), and Ride Cymbal. Finish would be renamed to Crash, Clap to snare. Whistle is... weird but I guess it can stay for now.