Frank Gratkowski played on nearly every German and on numerous international Jazz Festivals including Vancouver, Toronto, Chicago, New York, Seattle, Quebec, Les Mans, Muelhuus, Groeningen, Nickelsdorf, Barcelona, Lithuania, Warsaw, Zagreb, Prague, Bratislava, Sofia, Bucharest, Odessa and Roma. He has been teaching saxophone and ensembles at the Cologne, Berlin and Arnhem Conservatory of Music and is giving workshops all around the world as well. He has performed with Robert Dick, Phil Wachsmann, Radu Malfatti, Herb Robertson, Marcio Mattos, Eugenio Colombo, Peter Kowald, Ray Anderson, Michael Moore, Ken Vandermark, Greg Osby, Kenny Wheeler, Louis Sclavis, John Betsch, Jane Ira Bloom, Connie and Hannes Bauer, Xu Fengxia, James Newton, Muhal Richard Abrams, John Lindberg, Michael Formaneck, Ernst Reijseger, Fred van Hove, Theo Jörgensmann, Phil Minton, Peter Brötzmann, Mark Dresser, Mark Feldman, Hamid Drake, Michiel Braam, Han Bennink, Mal Waldron, Misha Mengelberg a.m.o.

Willy Winant.."one of the best avant-garde percussionists working today" according to music critic Mark Swed (Los Angeles Times), he has performed with some of the most innovative and creative musicians of our time, including John Cage, Iannis Xenakis, Pierre Boulez, Frank Zappa, Keith Jarrett, Roscoe Mitchell, Anthony Braxton, Fred Frith, James Tenney, Terry Riley, Cecil Taylor, Gerry Hemingway, Mark Dresser, Barry Guy, Marylin Crispell, George Lewis, Steve Reich and Musicians, Nexus, Charles Wuorinen, Jean-Philippe Collard, Frederic Rzewski, Ursula Oppens, Joan LaBarbara, Danny Elfman/Oingo Boingo, Sonic Youth, Marc Ribot, Keith Rowe, Joey Barron, Bill Frisell, Yo-Yo Ma, ROVA, and the Kronos String Quartet. His own groups include ROOM (w/Chris Brown / Larry Ochs / William Winant), CHALLENGE (w/Anthony Braxton / David Rosenboom / William Winant), WAKE (w/Frank Gratkowski / Chris Brown / William Winant), and the WILLIAM WINANT PERCUSSION GROUP.

Chris Brown is a featured composer, performer, and/or producer on over 30 recordings of new music. These include CDs of his own compositions on labels including Tzadik, Centaur, Sonore, Ecstatic Peace, Sparkling Beatnik, and Artifact Recordings. He has published articles on his innovative approach to live electronic music in Computer Music Journal and the Leonardo Music Journal. He also authored the article “Pidgin Musics”, on hybrid musical cultures, in the compilation volume “Arcana: Musicians on Music”, published by Granary Books. He has been an Artist-in-Residence at such institutions as STEIM in Amsterdam, Institute for Studies in the Arts (ISA) at Arizona State University, and the Headlands Center for the Arts in Sausalito, California.
Since 1990 he has also taught electronic music, composition, world music, and contemporary performance practice at Mills College, in Oakland, where he is a Professor of Music and Co-Director of the Center for Contemporary Music.

David Wessel studied mathematics and experimental psychology at the University of Illinois and received a doctorate in mathematical psychology from Stanford in 1972. His work on the perception and compositional control of timbre in the early 70’s at Michigan State University led to a musical research position at IRCAM in Paris in 1976. In 1979 he began reshaping the Pedagogy Department to link the scientific and musical sectors of IRCAM. In 1985 he established a new IRCAM department devoted to the development of interactive musical software for personal computers. In 1988 he began his current position as Professor of Music at the University of California, Berkeley where he is Director of CNMAT. He is particularly interested in live-performance computer music where improvisation plays an essential role. He has collaborated in performance with a variety of improvising composers including Roscoe Mitchell, Steve Coleman, Steve Lacy, George Lewis, John Butcher, Ushio Torikai, Thomas Buckner, Vinko Globokar, Jin Hi Kim, Shafqat Ali Khan, and Laetitia Sonami, and has performed throughout the US and Europe.