[3] He has worked as a member of many ensembles within many genres, including The Zvooks (ska, reggae, Chicago/Germany),[4] Function Ensemble (progressive rock, Melbourne/Chicago),[5] Maurice (math rock, Chicago),[6] The University of Chicago Gamelan,[7] aperiodic (art music, Chicago),[8] The University of California, Berkeley Gamelan (Javanese, Sari Raras),[9] Gamelan Encinal (new music, Mills College, Oakland, CA),[10] Gamelan Sekar Jaya (Balinese, Berkeley, CA),[11] Steady Eddy And The Shakers (soul and funk covers, San Francisco),[12] and ANiMA Art And Music (electronic, Seattle).
[13] Liddell has regularly performed live and improvised video as a guest with countless groups in Chicago and the San Francisco Bay Area, as well as his own video/music/art under the moniker ontologist.
[24][25] In 2010 he created 360 one-minute videos in a collaboration for the project's 6 different hour-long "RED" mixes, with subsequent performances throughout the United States and internationally.
[23][26][27][28] The screening of this collaboration at the San Francisco Outsound Festival was hailed by Jason Victor Serinus, Special to The Examiner, "Expect it to stretch whatever boundaries you may not have thought you had.
"[29] Liddell has taught music composition and theory at DePaul University.,[30] and until 2023 worked at The Quarry Lane School in Dublin, CA as Music Director and Coordinator Of Visual And Performing Arts, also teaching International Baccalaureate courses in performance and composition.