Back in the late 1990s, long-running noise imprint Anti-Everything inaugurated the Noise Conglomerate mix project.

The series, which offered a peculiar survey of experimental music with an emphasis on noise and power electronics, ran to three volumes, and came to an end in 2000. Master tapes for two further volumes have apparently been kept under lock and key at Anti-Everything for the last decade, and the label have now made Vols 4 and 5 available for public consumption.

Rat Ward point out, Anti-Everything have uploaded two unreleased instalments in the series to their Bandcamp page. Noise Conglomorate Vols IV & V were compiled by label affiliate Gary Stevens between 1998 and 2002 , and run the gamut from noise to sound art to other challenging sonic ephemera. Among those on the records: Dominick Fernow’s longtime Prurient project; Venezuelan experimental artist Carlos Giffoni; Black Leather Jesus; Sudden Infant and Cock ESP.

Head here to download the compilation for a price of your choosing, or stream the monster collections below. Perfunctory disclaimer: it’s not for the faint-hearted.