As a tribute to Jerry Garcia I would like to 'groove' a road (like the 'rumble strip' on the side that wakes you up when you have been driving too long!) so that when one drives a car over it it plays a tune.

I would take a strip of road and groove it to play the opening to "Darkstar".

My son and I (heh...my son really!) did some calculations and figure at 60mph a 1/4 note should be about 88 feet long. The shape and number of the cuts into the road would determine the timber of the note produced.