"Hans Koch plays bass clarinet and soprano saxophone. He has played alongside of musicians such as Cecil Taylor, Evan Parker, Fred Frith, Paul Lovens, Barry Guy, Barre Phillips, Phil Minton, Peter Kowald, Hans Reichel, Tom Cora, Jim O'Rourke, Fennesz, Elliott Sharp, Anthony Coleman, DJ M. Singe, Voicecrack, Günter Müller, Jean-Marc Montera, and Joëlle Léandre in Europe, America, and Asia-and still managed to maintain his association with the Koch-Schütz-Studer Trio. He has put out compact discs on various labels."

Antonio Panda Gianfratti: "Contemporary percussionist dedicated to free improvisation music for many years, reflecting both in Brazil and abroad. He is, in his 67 years, the dean of the Brazilian improvised music, as he was before in the free jazz. He founded the free improvisation collective Abaetetuba in 2004. He also left his mark on jazz "mainstream" and played rock, bossa nova, traditional music of Brazil. Always looking for something more, something new and different, even accompanied leading artists, attended a Billy Hart project and has shared the stage with a host of improvisers from across the world as Hans Koch, Phil Minton, Sabu Toyozumi, John Russell, John Edwards and many others. His work consists in the timbre development through the use of bows in cymbals over drums, prepared vibraphone, cello and also his own designed musical instruments. Interacts with cinema, theater, poetry, visual arts and multimedia. Has developed a parallel work as a teacher of improvisation in several projects across Brazil in Universities, Schools, Music Institutes, Cultural Centers."