more from
We've updated our Terms of Use. You can review the changes here.

The Soul is the Arena

by Mario Diaz de Leon

  • 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

    gatefold layout
    factory sealed
    includes essential liner notes by Nick Podgurski

    Includes unlimited streaming of The Soul is the Arena 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

Luciform 13:33


“21st century chamber music that couples crystalline clarity with the disorienting turbulence of a sonic vortex.” - Wire Magazine

"Plenty of people can write a one-off "amplified" piece for chamber musicians, but few artists have built a language as stable and rewarding as Diaz de Leon's." - Pitchfork

Mario Diaz de Leon is emerging as a singular voice in contemporary music. With a body of work that cannot be neatly categorized, his music is marked by a sound that is both hallucinatory and intensely physical, and an aesthetic engagement with the role of mysticism in contemporary life.

Born in Minnesota, Diaz de Leon expanded from his early years in metal and hardcore punk to immerse himself in the work of 20th century composers Scelsi, Ligeti, Dumitrescu, and Xenakis, free improvisation, a wide range of electronic music, and noise / industrial music. Based in NYC since 2004, he completed a doctorate in music composition at Columbia University, while also immersing himself in NYC's experimental, noise, and underground metal scenes. His debut album as composer, "Enter Houses Of", was released in 2009 on John Zorn's Tzadik label and praised by the New York Times for its "hallucinatory intensity". The album marked a key point in his association with the International Contemporary Ensemble (ICE), now acclaimed as “the new gold standard for new music" (The New Yorker).

As a solo performer, he is active under the name Oneirogen (o-NI-ro-jen), a project known for its merging of ethereal synths, brutal distortion, and noise influences. Since 2012, Oneirogen has toured internationally and released two full lengths and one EP on the Denovali label.

"The Soul is the Arena" is the long awaited follow up to his 2009 composer debut, and the first release of his classical works for Denovali. The album's three tracks find Diaz de Leon deepening his collaboration with the core members of ICE, now a decade long. The mythological trope of the labyrinth, where a winding path leads to a central event that demands a fundamental change of direction, features heavily in the album's blend of acoustic and electronic elements, where a wide variety of ideas are unified by continuous momentum and arresting points of climax.

"Luciform" and "The Soul is the Arena" pit virtuosic performances by soloists Claire Chase (flute) and Joshua Rubin (bass clarinet) against an array of vivid electronic textures. These range in character from doom-laden sub-bass to abrasive synthetic cacophony, recalling both Wolf Eyes and the early electronic works of Stockhausen. The elegiac "Portals Before Dawn" is written for a sextet of woodwinds, piano, percussion, and features Diaz de Leon himself on synthesizer. Reducing the density of the previous pieces to its essence, the work unfolds over 20 haunting minutes, transporting the listener through a boundless landscape of rising and falling intensities. Visionary and immersive, this is a bold body of work from an emerging master of modern composition.


released July 17, 2015

track 1 for flute and electronics | Claire Chase - flute
track 2 for bass clarinet and electronics | Joshua Rubin - bass clarinet
track 3 for ensemble and electronics | International Contemporary Ensemble

Luciform and Soul is the Arena recorded May 2013 by Ryan Streber at Oktaven Audio, Yonkers

Portals Before Dawn recorded live October 21st, 2011 by Bob Bellerue at The Kitchen, NYC

Mixed by Mario Diaz de Leon and Ryan Streber
Mastered by Ryan Streber
produced by Mario Diaz de Leon, Joshua Rubin, and Claire Chase

Denovali Records 2015
DEN 234

scores of "Luciform" and "Soul is the Arena" available via PSNY


all rights reserved



Mario Diaz de Leon New York, New York

Spark and Earth is out October 6th 2023 via Denovali.

contact / help

Contact Mario Diaz de Leon

Streaming and
Download help

Redeem code

Report this album or account

If you like Mario Diaz de Leon, you may also like: