[Hardware Music Hack] Star Wars Imperial March theme played by dual floppy drives

Hack a Day - Star Wars Imperial March Played by Dual Floppy Drives

"Although many have made some sort of music with improvised electronics, few sound as cool as this Imperial March from Star Wars played by two floppy drives. According to [Pawel], “It’s nothing new” and quite simple. This may be true as we’ve featured an Imperial March-playing floppy drive here before, but it was only one drive. Although it may not be the London Symphony Orchestra, the two drives together sound quite good!

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Silent's Homepage - Evil floppy drives – English translation

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Summer holidays are comming to an end, I have passed all september exams and now I am procrastinating doing some dumb things instead finishing two other, more serious projects .
Here’s my another, totally useless device – a musical floppy drives.

How does it work?

It’s nothing new and it’s very simple. The sound comes from a magnetic head moved by stepper motor. To make a specific sound, head must be moved with appropriate frequency.
FDD has a simple interface – the description may be found for example [ HERE ]. To move the head you need to activate the drive by pulling the DRVSB0 or 1 (depends on the cable you have and the connector – notice the crossover on the FDD ribbon cable) pin low and then falling edge on STEP pin makes the head move one step in direction dependent on DIR pin state.

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That's awesome. Makes me want to dig out some old drives... (well almost, they are buried pretty deep... lol)