The complete history of Läther demands a book. Though intended for release in the 1977 to '78 zone, a mess of management/label disputes derailed its release until Rykodisc's unabridged package in 1996 (three years after Zappa's death). Many of these tunes -- including "Big Leg Emma," "Punky's Whips" and "RDNZL" -- saw the light of day via other titles. But to hear them in the context Zappa originally intended really drives home Läther's ambitiousness. It's just about the only record from the composer's late-'70s period that contains the grandeur of his '60s work with The Mothers Of Invention.