Wanting to do some research on what people think are good rhythm games, doesn't have to be a specific playstyle like 4 key or 8 key. Could be anything, like Rhythm Doctor, ADOFAI, Rhythm Heaven, SDVX, Acraea, Stepmania, etc.
Lemme know what kind of stuff you like, and stuff you don't like. What do you consider good rhythm game design, and what isn't?
Personally, I am a big fan of 4 key rhythm games, but I do like other genres. I think story-based rhythm games like Rhythm Doctor have an amazing feel to them, and with custom music they really shine. Same goes with Friday Night Funkin'. It really shows how much a story can contribute to what was thought as an already very closely defined genre of games.
With outliers like Rhythm Heaven, and other hand hold device games; It's obvious that they have existed before, but now in 2022 it really looks like they're taking over.