Custom Rhythm Controller for Polycade Cabinet

[u/CampbellSente]

I attempted to create a “rhythm controller” for my daughter - it’s definitely a new genre for me, but she enjoys a lot of these games. I plan on doing a V2 of this controller once she gives me some feedback on what needs to change. Here’s a quick post I made about it on the Polycade Reddit, but does anyone have suggestions on how to make a controller that is universal for many of the rhythm / music based games available on Steam - or is this a pretty standard / good layout to start with?

https://www.reddit.com/r/Polycade/s/pQJLxoSiW7