Before Maurizio Bianchi was recording as M.B., or under his own name, he released a series of four tapes as Sacher-Pelz. In a short span between August 1979 and March 1980, his output showed the development from seemingly random, sloppy tape manipulations into something structured and composed, and a direct precursor to what would define Bianchi's work in the early 1980s. Reissued for the material’s 36th anniversary and expanded with the M.B. Plays Sacher-Pelz album, this set captures material that is both historically relevant, and exceptionally strong proto-noise music.