[ncilfinb] Embouchure

Musical wind instruments demonstrate that a large amount of information can "naturally" be transmitted through muscles in the mouth.  This is especially pronounced in instruments like trumpet, in which the hands and fingers transmit only 3 bits (3 pistons): everything else is done through the embouchure and breath.

Create a digital input device exploiting this capability.  Obviously hygiene issues, though that has always been present with wind instruments.