Local Los Angeles radio spot advertising the then-new Mothers of Invention LP Absolutely Free and a concert at the Pasadena Civic Auditorium with opening act Tim Buckley (both Frank Zappa and Tim Buckley were managed by Herb Cohen).

A terrific-sounding, lovingly remastered version of Absolutely Free has just been released by Universal, now in the midst of an ambitious Zappa catalog overhaul being overseen by Gail Zappa.and Zappa expert Joe Travers. The first dozen of his 60s and early 70s albums—everything from 1966’s Freak Out! to the 1972 live set, Just Another Band From L.A.—are already out. The next batch is due within a matter of days.
 

 
Previously on Dangerous Minds:
1967 Frank Zappa & Linda Ronstadt radio ad that influenced ‘The Simpsons’ theme