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by Oneirogen

  • Streaming + Download

    Includes unlimited streaming via the free Bandcamp app, plus high-quality download in MP3, FLAC and more.
    Purchasable with gift card

      €9 EUR  or more


  • Compact Disc (CD) + Digital Album

    Original pressing on Shinkoyo from January 2012, under given name.

    Includes unlimited streaming of Hypnos via the free Bandcamp app, plus high-quality download in MP3, FLAC and more.
    ships out within 7 days

      $10 USD or more 


  • Buy Limited Edition Vinyl via Denovali

Oneirogen 05:43
Consumed 07:24
Hypnocaust 05:48
Cinerum 04:30
Faithless 07:58
Kukulkan 10:40
Dissolution 06:18


ONEIROGEN is Mario Diaz de Leon, a composer and multi-instrumentalist residing in NYC. “Hypnotic walls of shimmering sound” perhaps describe his aesthetic most broadly, whether his medium is electric guitar, electronics, or acoustic instruments. His influences include modern composition, underground metal, and noise electronics. „Hypnos”finds Diaz de Leon focused on his style of hallucinatory music. Far from being a follow up to 2009′s “Enter Houses Of” (a genre defying album of new classical works), “Hypnos“ is a new direction, merging ethereal synths, brutal distortion, noise, and dark ambient. The album takes its title from the Greek god of sleep (also closely associated with night, death, and dreams), and the music itself is an eerie descent into the otherwordly, recasting familiar elements in a revelatory new light.

On the opening and closing tracks, hyper fast synth tones create a rushing, cathedral –like atmosphere. Tracks such as “Consumed”, “Hypnocaust”, and “Kukulkan” feature psychedelic, crushing distortion as their primary focus, taking influence from doom metal, black metal, power electronics, new age, and horror soundtracks. “Cinerum” and “Faithless” are highly structured takes on dark ambient, bringing the listener into haunting, strikingly beautiful realms of isolation, bleakness, and saturated noise textures.

A debut album of Diaz de Leon's works for acoustic instruments and electronics, “Enter Houses Of” was released on John Zorn’s Tzadik label in 2009. The disc received international acclaim from publications including Impose Magazine, The Chicago Reader, New Music Box, Pepper Zone (France), Touching Extremes (Italy), and The Bangkok Post. Time Out New York included included it in their “Best of 2009″ list; “A startling new compositional voice exploded out of this disc, with wistful melodies haunting an abrasive mix of modernist integrity and anarchic noise.” Steve Smith of the New York Times praised the disc for its “hallucinatory intensity".


released August 24, 2012

Mario Diaz de Leon - all instruments
written and recorded May - September 2011
mastered by Zeljko McMullen
cover image by Rimantas Bikulcius

Denovali Records 2012
DEN 144


all rights reserved



Oneirogen New York, New York

Oneirogen (o-NI-ro-jen) is the solo performance name of NYC based composer Mario Diaz de Leon.

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