Siviyex has been played on NTS shows including NTS 10 CURATED BY DOPPLEREFFEKT: QUANTUM WORMHOLE, with Visions In Formath first played on 20 April 2021.

Siviyex is Toronto duo Castelvi (bass guitar, vocals, synths, vocoder) and M. Gomes (synth guitar, programming). Their sound combines elements of shoegaze, electro, italo and new wave, with the conceptual influence of alternate dimensions, space, dreams, and out-of-body experiences.