Frank Zappa was one of the most accomplished composers of the rock era; his music combines an understanding of and appreciation for such contemporary classical figures as Stravinsky, Stockhausen, and Varèse with an affection for late-'50s doo wop rock & roll and a facility for the guitar-heavy rock that dominated pop in the '70s.
These are videos from concerts where Frank Zappa & The Mothers played, so they may be of other bands that played the concert as well.
Frank Zappa & The Mothers Jul 4, 1982 Bologna, Emilia-Romagna, Italy Embedded by Acrostico