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Originally from Greece, Theocharis Papatrechas is a composer, music technologist, and sound artist based in Brisbane, Australia.  

Praised as presenting "an intimate narrative" and attaining "beautiful instrumental intensity" (il giornale della musica), Theocharis's music arises from a search for reasons and sound images that resonate internally. His creative practice masters and utilizes technology to expand sonic possibilities and engage audiences in immersive auditory experiences.

His artistic portfolio consists of instrumental, electroacoustic, acousmatic, sound art, and sound installation works that involve acoustic components, pre-recorded media, and generative and interactive processes, employing Dante networking systems and ambisonics in


multichannel venues.


Renowned groups that have commissioned and premiered his works include the ensemble Intercontemporain, Nouvel Ensemble Moderne, Mivos Quartet, Vertixe Sonora, Ensemble Schallfeld, East Coast Contemporary Ensemble (ECCE), Divertimento Ensemble, Ensemble Multilatérale. Notable venues, at which works of his have been presented, include IRCAM, CCRMA at Stanford, SEAMUS at Berklee College, Anchorage Museum, SPLICE Institute, New York City Electroacoustic Music Festival (NYCEMF), Vienna Konzerthaus, SpazioMusicaUniversity of Montreal, and Shanghai Music Conservatory.

Hired to diffuse his artistic practice into scientific projects and contribute to the ever-growing research community in acoustics, Theocharis has held appointments at the California Institute for Telecommunications and Information Technology (Postdoctoral Scholar), Scripps Institution of Oceanography (Research Associate), and Center for New Music & Audio Technologies (CNMAT) at UC Berkeley (Visiting Composers and Researcher). His work deals with acoustic data from underwater and terrestrial environments and, through applying research on acoustics, audio engineering, sound synthesis, and spatial 3D and VR audio, purposes to formulate a broader understanding of the impacts of climate change on the environment. 

Theocharis holds a Ph.D. in Music Composition from University of California San Diego (UCSD) where he worked with Rand Steiger, Lei Liang, and Miller Puckette. Other leading institutions he studied at include the Eastman School of Music, IRCAM, and Sibelius Academy.

His music has been released by ArsPublica. His scores are published by Babel Scores.

Since 2015, Theocharis serves as the Artistic Director of the ilSUONO Contemporary Music Week. The program's core mission is to diversify the practice by bringing together emerging music creators of diverse socio-economic backgrounds, ethnicities, cultures, gender orientations, and aesthetics to learn, share, and collaborate. ilSUONO is delighted to have invited exceptional senior composers, among others, Chaya Czernowin, Pierluigi Billone, Franck Bedrossian, Ann Cleare, Rand Steiger, Edmund Campion, Clara Iannotta, and performers such as the ensembles Schallfeld and Lemniscate. The 21', 22', and 23' editions were funded by the esteemed Ernst Von Siemens Music Foundation.

Currently, he is a sessional lecturer at the Queensland Conservatorium Griffith University teaching Music Theory & Aural Studies and at the University of Queensland teaching Music Technology.

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