As a record producer Harmon has worked with highly acclaimed artists such as Chicago Underground Trio, Andrew Bird, Jim Baker, Josh Abrams, Rob Mazurek, Kalaparush Maurice McIntyre, as well as collaborated on projects with Alan Licht, David Grubbs, Wolfeyes, the Magik Markers, and Spires that in the Sunset Rise.
Alan Moore | Alan Lomax | Alan Alda | Alan Jackson | Alan Shearer | Alan Turing | Alan Greenspan | Alan Autry | Alan Ayckbourn | Alan Jay Lerner | Alan Ridout | Alan Bennett | Alan Arkin | Alan Thicke | Alan K. Simpson | Alan Keyes | The Alan Titchmarsh Show | Alan Whiticker | Alan Jones | Alan | Alan Watts | Alan Rickman | Alan Freed | Alan Clark | Alan Price | Alan Hovhaness | Alan Bleasdale | Alan Titchmarsh | Alan Dershowitz | Alan Brooke, 1st Viscount Alanbrooke |
He has performed and/or recorded with Annie Gosfield, Marc Ribot's Shrek, Elliott Sharp, Fred Frith, Joan Jeanrenaud, Ikue Mori, Carl Stone, Laurie Anderson, Phill Niblock, Alan Licht, David Moss, Hahn Rowe, Chris Cutler, David Krakauer, Chris Brown, Zeitgeist, Relâche, Agon Orchestra, William Winant, Zeena Parkins, Stan Ridgway, Trevor Dunn, Ches Smith, and others.