Seth Horvitz is a composer and electronic musician best known internationally as Rrose. Since the early 2010s, Rrose's discography — for labels including Sandwell District, Stroboscopic Artefacts and his own Eaux — has made him one of contemporary techno's most distinctive voices, built on microtonality and the perceptual thresholds where tone meets noise.

Alongside this, Rrose maintains an active concert practice: authored and interpretive work presented in listening-focused settings — concert halls, museums and festivals — rather than on the dancefloor. This includes an ongoing interpretation of James Tenney's Having Never Written a Note for Percussion on tam-tam, performed internationally since 2012; a new body of work for automated pipe organ, presented this year at Berlin's AGGREGATE Festival alongside organ duo gamut inc; and a spatial, laptop-based version of a piece originally developed for the Magnetic Resonator Piano, created for Queen's University Belfast's SARC Sonic Lab and performed at Sonorities Festival.

Rrose's most significant ongoing collaboration is with pianist and composer Charlemagne Palestine. The two first connected over a decade ago through Palestine's Strumming Music, and went on to co-develop The Goldennn Meeenn + Sheeenn — a two-piano reworking of Palestine's 1976 piece The Golden Mean, commissioned by Festival Variations (Nantes) and released on Eaux in 2019. The duo is now developing a new two-piano, four-hands version of Strumming Music itself, planned for 2027.

Most recently, Rrose composed the original score for Not Exactly BPM (Variation Rrose), artist Jacqueline Kiyomi Gork's installation at the 16th Gwangju Biennale (Sept–Nov 2026), and continues to perform internationally across both concert and club contexts.

Rrose holds a BA in Cognitive Science from UC Berkeley and an MA in Electronic Music and Recording Media from Mills College.

SELECTED LIVE WORKS

Rrose plays James Tenney — Having Never Written a Note for Percussion *
Rrose’s interpretation of James Tenney’s seminal 1971 work for solo tam-tam, tracing a single extended crescendo and decrescendo through the instrument’s shifting harmonic spectrum. An established part of Rrose’s concert repertoire.

Also available as an A/V performance with visual artist Ali M. Demirel, pairing the live Tenney performance with Demirel’s moving-image work Gods of Latmos on a vertical screen.

Rrose — Experimental Electronic Live

A solo electronic performance centred on Rrose’s experimental and compositional practice, conceived for concert halls, museums, seated audiences and unconventional listening environments. The performance can be adapted to multichannel and immersive sound systems for dedicated spatial-audio environments.

Rrose plays Magnetic Resonator Piano / Spatial Performance
An electroacoustic performance developed for SARC’s Sonic Lab in Belfast, combining spatialised electronic composition with Magnetic Resonator Piano — an augmented grand piano in which electromagnets activate and sustain its strings. The work can also be adapted for multichannel performance without the physical piano.

Rrose plays Charlemagne Palestine — Strumming Music
Rrose’s solo-piano interpretation of Charlemagne Palestine’s landmark Strumming Music, developed following Rrose’s study of the work with Palestine. A slowly intensifying, immersive performance built through repetition, resonance and the accumulating overtones of the piano.