Whilst Frank Zappa could be contentious most of the time, he once named "the best-engineered rock 'n' roll record", and it's rather agreeable.
Frank Zappa Rock & Roll Hall of Fame
Top 12 Most Essential Frank Zappa Albums
Top Ten Best Frank Zappa Albums Ranked & Reviewed
Kubernik: Frank Zappa and The Mothers – Music Connection Magazine
FRANK ZAPPA discography and reviews
The 10 Best Frank Zappa Albums To Own On Vinyl - Vinyl Me, Please
Zappa, Frank - You Can't Do That On Stage Anymore - Vol. 2
You can't do that on stage anymore 2-Helsinki concert by Frank
Frank Zappa – Unreleased 4 LP “Läther” Test Pressings