Remember the giant-sized piano keys that Tom Hanks jumped around on in Big? Of course you do; you were just mentioning it the other day, remember? Anyway, aM laboratory’s Tone Matrix gizmo is way freakin’ cooler than that. Trying to describe it would suck all the art and wonder out of it, and still wouldn’t make it clear anyway, so just check it out. It takes about two clicks to understand how it works (and a potential afternoon to lose yourself in it).