I am building custom hand-wired keyboard with teensy 2.0 and I have that kinda crazy idea of putting media keys where my thumb would rest ( on the side of the keyboard, roughly where space would go). And I need help figuring this out. Is it possible to wire potentiometer to control volume, if i already wired keyboard to teensy ? Or use keys ? I would be much more elegant solution to use potentiometer for volume, it just feels natural, and it may give a better look to keyboard with volume knob.