Frank Gratkowski - alto saxophone and clarinets
Chris Brown - piano and live electronics
Willi Winant - percussion
David Wessel - live electronics

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.

Furthermore 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.

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.

William Winant, "one of the best avant-garde percussionists working today" according to music critic Mark Swed (Los Angeles Times, Wall Street Journal), has performed with some of the most innovative and creative musicians of our time, including John Cage, Iannis Xenakis, Keith Jarrett, Anthony Braxton, James Tenney, Cecil Taylor, George Lewis, Steve Reich and Musicians, Jean-Philippe Collard, Frederic Rzewski, Ursula Oppens, Joan LaBarbara, Oingo Boingo, and the Kronos String Quartet. He is principal percussionist with the San Francisco Contemporary Music Players and the John Zorn Chamber Ensemble.

In 1999 he produced a recording of 20th-century avant-garde composers with the influential rock band Sonic Youth; "Goodbye 20th-Century" (SYR4) was hailed by both The Los Angeles Times and New York's Village Voice as one of the best compendiums of this type of music ever recorded.ver 25 new works for violin, piano, and percussion at major festivals and recitals throughout the world. Their recordings can be heard on the New Albion, Tzadik, and CRI/New World labels.

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.