Matt Orenstein is a Burbank-based composer and bassist. He has scored several shorts, features, and trailers, and has written music for branded content from companies including Mercedes-Benz, Square, and DoorDash, alongside maintaining an active schedule as an electric and upright bassist in LA.

Films with Matt's scores have screened at several film festivals around the world, including SXSW, Slamdance Emergence, Mostra São Paulo, Chicago Independent Film Festival, Santa Barbara International Film Festival, and Cinequest. In 2022, he scored the Webby-nominated documentary short “Nearside: Pink Mahogany,” directed by Max Gold.

Matt got his start as a bass player in the relentlessly experimental Minneapolis music scene as an adolescent in the early 2000's, the spirit of which he carried with him to Oberlin, OH. While at Oberlin Conservatory, he studied bass with Peter Dominguez (and Eddie Gomez during Dominguez's sabbatical), studied electronic music and composition, and played in as many different kinds of ensembles as he could. He spent 2011 to 2015 in Chicago, where he worked as a teacher, composer, songwriter, sound designer, used vinyl buyer, and instrumentalist.

Matt's work and performances have seen favorable coverage in several publications, including The New York Times, The LA Times, Entertainment Weekly, and the Allmusic Guide. He has worked with Four Larks, Popular Music, Photo Ops, Fonema Consort, Bridge to Everywhere, Jacaranda Music, Meels, Sara Melson, Occults, Catch Pritchard, Lyris Quartet, Lisa Kori, Cones, and several other artist and groups around the US.

Matt has toured the country several times under several different banners, including his longtime project Lionel O, which released six albums between 2006-15. He has released three albums as a solo artist, independent of his soundtrack work: Quarantine Songs 1, Quarantine Songs 2 (both 2020), and Desiccation (2026).

He is currently the jazz and pop bass Teaching Artist at Youth Orchestra Los Angeles’ (YOLA) Heart of Los Angeles site, in the HOLA Music Studios program.