I have completed Guitar Hero II on medium! Though now I have to go back and do five or so of the songs over and over until I get 5 stars on them... But at least now I have unlocked Freebird, so Ali will be happy.

I noticed that I haven't actually managed to get 5 stars on all the easy songs, I have to go back and do that to unlock another guitar. Hum.

Fun fun fun.