"Kevin Drumm is an experimental musician based in Chicago, United States

Emerging from the city's improvised music scene, in the 1990s he became one of the world's pre-eminent prepared guitar players. Since then his work has expanded to include electroacoustic compositions and live electronic music made with laptop computers and analog modular synthesizers. His early recordings contain mostly sparse, quiet sounds; recent works have been more loud and dense.

Drumm has collaborated with many artists working in similar fields, including Japanese guitarist Taku Sugimoto, multi-instrumentalist and producer Jim O'Rourke, and many European improvisers such as Swedish saxophonist Mats Gustafsson and German trumpeter Axel Dörner. He has also worked with the artist group Simparch, composing a piece for their installation Spec, shown at Documenta XI in Kassel, Germany and at the Renaissance Society in Chicago. Drumm has also worked with saxophonist Ken Vandermark's Territory Band, which brings together American and European players who work in both jazz and free improvisation.:

"Martin Tétreault. Born Saint-Jean-Baptiste-de-Rouville, Québec, 1957. Residence: Montréal, Québec. Composer, Performer (turntable), Artist.

Martin Tétreault is an internationally-renowned sound artist based in Montréal. He is a leading figure in improvisation using turntables, unusual vinyl surfaces and objects. Tétreault's trajectory includes various productions on compact disc and live performances with a range of collaborators: Diane Labrosse, René Lussier, Érik M, Michel F Côté, i8u, Otomo Yoshihide, Xavier Charles, Kid Koala, and many more. He is the composer and director of a turntable quartet Quatuor de tourne-disques founded in 2006. His work has appeared under several labels including Ambiances magnétiques, Erstwhile, Japanimprov, Oral, Victo and Vand'œuvre. Commissioned for music, dance, theatre, poetry and installation, Tétreault has been the recipient of many grants and awards."