[1] "Boundary Layer" 2008 The Hub with John Bischoff, Chris Brown, Tim Perkis, Scot Gresham-Lancaster, Phil Stone.
"Thousand Oaks" 2005 Philip Gelb (shakuhachi), Shoko Hikage (koto), Tim Perkis (electronics), Chris Brown (piano).
"Luminous Axis" 2002 Wadada Leo Smith with John Bischoff, Chris Brown, Ikue Mori, Tim Perkis, Mark Trayle and William Winant.
"International Live Electronic Music Incorporated" 2000 Recorded at the Korzo Theater, Den Haag on 9 April 1998.
John Bischoff, Tim Perkis, Gert-Jan Prins, Luc Houtkamp, Kaffe Matthews and Anne LaBerge.
CD "What Would This Record Have Sounded Like of John Cale had had Some Setback and Cinzia La Fauci and Alberto Scotti had Taken His Place?"
2000 Compilation of Iggy Pop covers by various artists including: Perkis, Etoile Filante, Solex, Taniguchi Masaaki, Ectogram, Steven Bryant, Jonathan LaMaster/Roger Miller, Frank Chickens, Crowded Air, Oxbox, Allun, God is my Co-pilot, Dean Roberst, Massey Fergusson Ensemble, The Pornography, Culo Negro and Mutable.
CD "Perkolator" 1999 Pieces all made by mangling live recordings of improv ensemble sessions with Henry Kuntz, Matt Ingalls, Gino Robair, John Shiurba, Ed Hermann, Dave Slusser, and Matthew Sperry.
CD "Buddy Systems" 1998 Gino Robair plays selected duos and trios, with John Butcher and Tim Perkis, Otomo Yoshihide, Carl Kihlstedt and Matthew Sperry, Dan Plonsey, LaDonna Smith, Splatter Trio, Oluyemi Thomas, and Myles Boisen on Meniscus(Minneapolis).
CD "Tarzan Speaks" 1991 w/ group Rotodoti: Doug Carroll (cello); Ron Heglin (trombone, voice); Tom Nunn (electroacoustic percussion); Tim Perkis (electronics).
CD "The Hub" 1989 JOHN BISCHOFF, TIM PERKIS, CHRIS BROWN, SCOT GRESHAM-LANCASTER, MARK TRAYLE, PHIL STONE.
The group electronically coordinates the activity of their individual systems through a central micro-computer, The Hub itself, as well as manually through ears, eyes, and hands.