Metgumbnerbone has been played on NTS shows including Yem Gel, with Aes Sidhe first played on 1 November 2020.

Metgumbnerbone was an obscure ritual-industrial improv project that centered around the collaboration between Richard & Philip Rupenus (better known as The New Blockaders, and often Organum partners), John Mylotte, and Sean Breadin (who with Richard Rupenus formed the oblique ritual project Masstishaddhu). From what little information is available about the group, Metgumbnerbone only had a couple releases back in the mid '80s with "Ligeliahorn" being the only recording to get beyond the short run productions of cassette culture with a vinyl release on the now defunct A-Mission Records. Metgumbnerbone has been an ensemble whose recordings have become fetish objects from the most obtuse regions of industrial culture, sorta like those Vagina Dentata Organ records.