3 Valve Tuba Simulator

I attempted to make an accurate simulation of playing a tuba for untitled game jam #30. The aim was to have a rhythm game with controls accurate to actually playing a 3 valve tuba. I both ran out of time and realized that this concept wasnt fun. What remains is the controls for the hypothetical game. The lines on screen indicate the stave lines of sheet music, however due to the tubas range there are more than 5. The colour of the lines indicates what pitch (at the top of the screen) should be u...