Well, if we're adjusting for the masses, I think you have to take "Who's Next".

I guess Bob stipulated "best of their type" or some such. Now, I don't know exactly what that means and maybe he thinks that the "types" we're trying to cover with Rush, The Who and others are already covered.

Other than the suggestions already offered by others, I think this is a pretty amazing and complete list of important works during that time period. How about Tower of Power - Back to Oakland?

bibere usque ad hilaritatem