David Rothbaum is a Los Angeles-based composer and improviser who performs primarily on analog modular synthesizer and contralto and Bb clarinets. Both his acoustic and electronic work focus on some of the same basic principles: micro sounds, atmosphere and attempting to seamlessly blend the electronic and acoustic timbres. Some of his recent works include combining these audio elements with digital and analog video synthesis, multiple speaker arrays and super 8 films and projectors. He also performs in various improvisational settings, mainly focusing on electro-acoustic music. He also runs a record label, experimental musical research (emr), and co-organized the weekly new and improvised music series line space line for three years with musicians Jeremy Drake and Chris Heenan. He has released seven recordings thus far and has numerous planned releases on various record labels, including Reify, Rasbliutto, emr and Alienation.

Recent collaborations/groups/bands include: A duo with Joseph Hammer on tape loops; a duo with Bryan Eubanks on open circuits; a duo with Jessica Catron on cello; Mizzly, a duo with Mitchell Brown on analog synthesizer and various electronics; Cube of Force, a duo with Kyle Bruckmann on oboe and french horn; Gort, a duo with Jeremy Drake on guitars; DDD, a trio with David Kendall on computer and Doug Russell on electric guitar; The Kentucky Knobs, a trio with David Kendall on computer and Jonathan Zorn on modular synthesizer and The Davids; this group consists of performers named David which changes for each performance and has included David Kendall & other people named David.