271. Spirit

A California Rock Band that seemed to be able to do it all, Spirit was able to blend multiple Rock influences anywhere from Hard Rock, Psychedelic, R&B, Classical and Folk. Often they would veer from influence to influence and this may have been why they had only modest success as many music fans in that era searched for acts that were more specific as opposed to diverse. Spirit was clearly an influence on Led Zeppelin, and if there are members of the Hall committee who believe that Zeppelin is one of the greatest bands ever (and many fans do), it is possible that Spirit could get a peek.