Mass in F Minor is the third studio album by American rock band The Electric Prunes, released in It consists of a musical setting of the mass sung in Latin. Find a The Electric Prunes - Mass In F Minor first pressing or reissue. Complete your The Electric Prunes collection. Shop Vinyl and CDs. The background to the bizarre twist of events leading to the Electric Prunes' album Mass in F Minor needs some explanation. The Prunes' previous LP.