Unlocking Co-op Tracks on 360

I don't think this will spoil anything for anyone (especially if you have no friends to play co-op with), but some of these tracks are great fun to play.

Here is how to unlock them on the 360.

Note 1: This also unlocks all bonus tracks, but you probably have most of them paid for already...

Note 2: This unlocks the songs permanently (so they're still there when you shut down your 360)

1. Open the option menu and select the cheats option.
2. Play the following notes (for each note/notes, strum once)

Y=Yellow, O=Orange, R=Red, G=Green, B=Blue

YO means hold down Yellow and Orange at the same time, and strum)

(Notes spoilered, just to be safe)