Gotye – Somebody That I Used to Know – Old School Computer Remix (by bd594)

Awesome!  "Instruments" used include:

Amiga 600 Bass on left audio output and Guitar on right audio output
Each audio channel was feed into an oscilloscope
2 Harddrives as the drums and cymbal
Xylophone as the Xylophone (duh)
Both the Harddrive and Xylophone are controlled by one PIC16F84A mircocontroller