This project is 99% the work of @PullJosh. Here, I just added a few new features. Each digit of pi can be heard as a note on a pentatonic scale. 1) Press space to start/stop the auto advance. 2) Use left and right arrows to move one digit at a time. 3) Press F to flip to positive or positive/negative values. 4) Press M to mute/unmute the sound. 5) Press I to cycle through the instruments. 6) Use the slider to skip ahead or back.
There are 17,000+ digits of pi to look at and listen to here. Again... thanks to @PullJosh for the amazing Pi Graph project!