Jon Leidecker has been engaged with the medium of electronic music since the mid-1980s, performing in collaboration with others and appearing solo under the unchosen pseudonym Wobbly with an emphasis on live performance and improvisation. His early works utilized sonic collage and musical appropriation, growing out of a series of appearances on Negativland’s live-mix radio program Over the Edge, which involved improvising with recorded sounds to produce music that inherently resists the act of being recorded. Recent work includes investigations of the history and musical aesthetics implied by the physics of acoustic and electrical feedback; research into the technology and creative workflow required for immersive sound diffusion (including five years of work as a member of the engineering team for Dolby’s 3D sound format Atmos); and the use of mobile devices and their built-in microphones as cybernetic improvising partners.

In 2008, the Museum of Contemporary Art in Barcelona commissioned the podcast Variations, a nine-hour musicological tour through the history of collage and the practice of sampling through the twentieth century. Wobbly’s live and studio collaborations include work with Negativland, Dieter Moebius, Tim Story, Matmos, People Like Us, Fred Frith, Zeena Parkins, Carl Stone, John Oswald, Thomas Dimuzio, Huun-Huur-Tu, and Sagan. In 2015 he inherited the Over the Edge program, which continues to be broadcast twice a month on Berkeley's KPFA.