For my final project, I plan on making interactive music graphics, or a music rhythm game. I haven't made up my mind about this yet so my plan is to start making something and decide later on.
The general idea is to make a music instrument (i.e. piano, drums, combination of both) that users can interact with. For example, making a piano that users can play with. Or making a drum sequencer that users can interact with using keyboards.
Graphics will show on screen whenever users interact with the instrument. The idea is to let users create their own graphics and music.