I agree with adaher - the lead guitarist for WH (I apologize for not knowing his name) was awesome. His amp had a digital display of the chords he played (A, B, C etc). Of course not every chord he played was a true A chord or true B chord, but during one of his solos the display was going nuts: I couldn't keep up with the letters as they were flashing by.
Other guitarists were frigging crazy, too, but I think I was just in awe of the kid from WH cuz I could actually visualize what he was doing (as I am in no way a musician).