FRANK ZAPPA’S CELEBRATED 1970 MOTHERS LINEUP COMMEMORATED WITH UNRELEASED 70-SONG COLLECTION OF STUDIO AND LIVE RECORDINGS FOR 50th ANNIVERSARY Disc 1 – Trident Studios, London, England June 21-22, 1970 Disc 2 – Live Highlights Part 1 – “Piknik” VPRO June 18, 1970 / Pepperland September 26, 1970 Disc 3 – Live Highlights Part 2 – Hybrid Concert: Santa Monica August 21, 1970 / Spokane September 17, 1970 Disc 4 – Live Highlights Part 3 – FZ Tour Tape Recordings To commemorate the 50th anniversary of Frank Zappa’s celebrated but short-lived 1970 Mothers Of Invention lineup, “Portuguese Fenders,” the first track to be released from the new collection, The Mothers 1970 is available to stream today. The newly-discovered gem is one of 70 unreleased live and studio recordings featured on The Mothers 1970,  available as a 4CD box set June 26 via Zappa Records/UMe. Recorded live by Zappa on his own tape recorder on tour in 1970, “Portuguese Fenders” is a rollicking live recording featuring an exhilarating guitar solo by the iconoclastic composer and virtuosic guitarist backed by the revered ensemble. Overseen by the Zappa Trust and produced by Ahmet Zappa and Zappa Vaultmeister, Joe Travers, The Mothers 1970 collects together more than four hours of previously unreleased performances by the heralded lineup which lasted roughly seven months: Aynsley Dunbar (drums), George Duke (piano/keys/trombone), Ian Underwood (organ/keys/guitar), Jeff Simmons (bass/vocals) and Flo & Eddie aka Howard Kaylan (vocals) and Mark Volman (vocals/percussion) of The Turtles who performed under the aliases to skirt contractual limitations of performing under their own names. This iteration of The Mothers, which likely began rehearsals fifty years ago this month, came to an end in January of 1971 when Simmons quit the band during the making of the “200 Motels” movie. The Mothers 1970 encapsulates the band’s brief but productive span, which included two visits to the studio – resulting in the fantastic 1970 album, Chunga’s Revenge – and tours across the U.S., Canada and Europe. Divided into four parts, the collection is anchored by top notch studio recordings recorded at the famed London-based Trident Studios on June 21-22 with a then-young, unknown producer in the engineer chair by the name of Roy Thomas Baker, several years before he’d go on to have massive success working with Queen, The Cars and Alice Cooper to name a few. An unreleased early mix by Baker of the Chunga’s Revenge track, “Sharleena,” is just one of the many highlights of the studio recordings that also boasts several unearthed rough mixes of the Zappa/Simmons co-write, “Wonderful Wino,” including a rare version that showcases vocals and an alternate guitar solo by Zappa that has been lost to the ages as the original multi-track stems were recorded over. Of the material recorded during this two-day span, “Sharleena” was the only song ever officially released – so tracks like “Red Tubular Lighter,” “Giraffe” and an...