Siyeol Ju (b. 1995, South Korea) is a composer based between Korea and Germany. His practice moves across electronic music, installation, media art, and contemporary dance, with a central focus on how sound is shaped by space, movement, and the conditions of performance. Rather than treating stage layout and diffusion as secondary production choices, Ju approaches spatial and theatrical structures as compositional parameters—materials that can be written, reconfigured, and performed.

A recurring question in his work is how listening changes when the “frame” of performance is altered: when sound is distributed, embodied, and mediated through image, text, or action. In recent projects he has been particularly engaged with stage and spatial architectures—speaker placement, performer positioning, and the dramaturgy of attention—as well as installation-based formats that allow sound to function as an environment rather than a linear narrative. Alongside composed structures, he is increasingly interested in improvisation as a compositional tool and as a way to keep the work responsive to site, performers, and real-time situations.

Ju studied composition at Seoul National University (B.M., M.M.) and is currently pursuing a Master’s degree in Electronic Composition at the Hochschule für Musik Freiburg. His works have been presented internationally, including at Donaueschinger Musiktage Soundlab, Sävellyspaja (Finland), and Uuden Musiikin Lokakuu (October of New Music, Finland). As a live electronics performer, he has worked in contexts that foreground real-time decision-making and improvisation, including performances with a custom Max patch at the À suivre Festival (HKB Bern).

Notable works include Contemplation, a multimedia series for string quartet, electronics, actor, and media art; Suite for solo piano; and To Walk on the Snow… for flute, violin, and cello. His recent activities include participation in masterclasses with Johannes Kreidler, Jukka Tiensuu, and Andrew Norman, as well as projects spanning concert and installation settings at the Hochschule für Musik Freiburg.

In addition to composing, Ju is active as an organizer and curator. He is co-director of Contemporary Sound Crew (CSC), through which he curates annual performances and initiates interdisciplinary projects that merge acoustic and electronic expression with visual and performative media. He also directs Kkun (Contemporary Music Ensemble) and is a member of Mingle. Through performances and collaborations in Korea, Germany, and beyond, he continues to expand a practice that treats composition as a field of relations—between sound and space, technology and gesture, structure and immediacy.