Originally from Greece, Theocharis Papatrechas is a composer, music technologist, and sound artist based in San Diego, CA.  

He is currently a Postdoctoral Scholar at the Qualcomm Institute of the California Institute for Telecommunications and Information Technology (CalIT2) conducting research on the development of unconventional, multi-modal data rendering techniques with particular focus on sonification of extreme environmental events.

In 2021, he was appointed Research Associate at the Scripps Institution of 

Oceanography to develop methods on assembling quantitative underwater 3D soundscapes utilizing data recorded at the bottom of the Canadian Arctic. Lastly, Theocharis has been in residence at the Center for New Music & Audio Technologies (CNMAT) at UC Berkeley as Visiting Researcher and Composer



He holds a PhD in Music Composition from the 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 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, being presented within immersive environments using multi-channel configuration setups and Ambisonics. Notable groups that have commissioned and premiered his works include the Mivos Quartet, ensemble Intercontemporain, Nouvel Ensemble Moderne, Vertixe Sonora, Ensemble Schallfeld, East Coast Contemporary Ensemble (ECCE), Divertimento Ensemble, Ensemble Multilatérale. His music has been presented in the contexts of IRCAM, CCRMA at Stanford, SEAMUS at Berklee College, SPLICE Institute, Qualcomm Institute of Technology (Calit2), New York City Electroacoustic Music Festival (NYCEMF), University of Montreal, and Shanghai Conservatory of Music.

His compositions have been awarded in, among others, the 1st International Antonin Dvorak Composition Competition (3rd Prize), Eastman Orchestral Composition Competition (1st Prize), and 9th International Foudoulis Composition Competition (2nd Prize). He has also been the finalist for the ASCAP Morton Gould Young Composer Awards and the Kanter String Quartet Composition Prize. For his academic work, he has been awarded fellowships and grants from the prestigious American Hellenic Educational Progress Association, and Onassis and Samuel Adler Foundations.

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, Rand Steiger, Franck Bedrossian, Edmund Campion, Clara Iannotta, and performers such as the ensembles Schallfeld and Lemniscate. ilSUONO has had applicants from 37 countries. The team is immensely proud of their participants who leave the program to continue their endeavors at institutions like Harvard, UC Berkeley, IRCAM, and Conservatoire de Paris. The 2020-21 edition of his festival ilSUONO Contemporary Music Week was supported by the esteemed Ernst Von Siemens Music Foundation.


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