Singing Squares Program screenshot

This is a screenshot of a program I made for my computer and music class. By clicking and/or dragging the mouse on the display, the user can create squares that plays a note. I don't have any expriance recording computer. otherwise I wolde have provided a link to the video

EDIT: I made a modified program that create squares that plays a note based on the degree of tilt of My iPad. Can't get it to work anymore!
EDIT: EDIT: I got it to work