I've completed the story mode of Guitar Hero World Tour a few weeks ago. Being all emotional and moved by it, my inner "make another dumb list" itch kicked-in.
There've been quite a few guitar hero games produced over the years, especially in the 7th gen. Wikipedia has a nifty table just for that: List of guitar hero games Rock Band series, by Harmonix had quite a few titles too. The plastic guitars, drums and mics were interchangeable between these two series, so OF COURSE there've been attempts to jump onto the fake plastic rock wagon made by third parties.
Rock of the Dead (Think Typing of the dead, but with a GH controller. Guess thats what inspired Rocksmith "Chord of the dead" and "Return to Castle Chordead" guitarcade mini-game)
Fret Nice a platformer where u control ur dude with a guitar controller
Rock Revolution (Konami attempting to make a western, gh-themed guitar freaks game)