Thank you for the feedback!
The resetting wrong parts is a great idea, we'll do that.
Spacebar to play is also a really good idea, I'll add that as an option. For the bass I also wasn't totally satisfied with the controls, so maybe we'll change a bit more for that.
For the song I sadly ran out of time, That's why the last notes are kind of messed up and then it ends. We already have graphics for when you hit and miss, I'll just have to add them. I also wanted to add three difficulties, but as I said, no time. But We'll add that in the second part so maybe try again then.
Also thanks for the bug report that's a super easy fix, I just didn't think of testing that.
I tried your game too and is really nice.