Figure it out yourself XD EDIT: Since it's featured.. Move the bow around. Click down while over top of the thicker bits of the strings EDIT: Press 1 and click a string to make a sound 1 fullstep higher than the original string EDIT: Andddd last edit for now: Pressing 2 and 3 works on the A String (3rd string from the left) EDIT(added by G-town the creeper07): press arrow keys to change color.
Embertail did most the work, but I just changed the strings' pitches a bit. Thanks Embertail!