http://www.youtube.com/watch?v=jFCjv4_jqAY

Automatically breaking a chord down into its constituent notes so that you alter the timing and pitch. Now you'll know why the next Linkin Park album is full of intricate guitar variations and tricks of timing that only a virtuoso should be able to produce (rather than that douche with the headphones).

An amazing production tool; possibly a revolutionary one in terms of sampling.

Also: KING OF BEEEARDS