"Born in 1961 in São Paulo, Brazil, Perelman was a classical guitar prodigy who tried his hand at many other instruments - including cello, clarinet, and trombone - before gravitating to the tenor saxophone. His initial heroes were the cool jazz saxophonists Stan Getz and Paul Desmond. But although these artists' romantic bent still shapes Perelman's voluptuous improvisations, it would be hard to find their direct influence in the fiery, galvanic, iconoclastic solos that have become his trademark.

Moving to Boston in 1981, to attend Berklee College of Music, Perelman continued to focus on mainstream masters of the tenor sax, to the exclusion of such pioneering avant-gardists as Albert Ayler, Peter Brötzmann, and John Coltrane (all of whom would later be cited as precedents for Perelman's own work). He left Berklee after a year or so and moved to Los Angeles, where he studied with vibraphonist Charlie Shoemake, at whose monthly jam sessions Perelman discovered his penchant for post-structure improvisation: "I would go berserk, just playing my own thing," he has stated.

Emboldened by this approach, Perelman began to research the free-jazz saxists who had come before him. In the early 90s he moved to New York, a far more inviting environment for free-jazz experimentation, where he lives to this day. His discography comprises more than 50 recordings, with a dozen of them appearing since 2010, when he entered a remarkable period of artistic growth - and "intense creative frenzy," in his words. Many of these trace his rewarding long-term relationships with such other new-jazz visionaries as pianist Matthew Shipp, bassists William Parker, guitarist Joe Morris, and drummer Gerald Cleaver.

Critics have lauded Perelman's no-holds-barred saxophone style, calling him "one of the great colorists of the tenor sax" (Ed Hazell in the Boston Globe); "tremendously lyrical" (Gary Giddins); and "a leather-lunged monster with an expressive rasp, who can rage and spit in violence, yet still leave you feeling heartbroken" (The Wire). Since 2011, he has undertaken an immersive study in the natural trumpet, an instrument popular in the 17th century, before the invention of the valve system used in modern brass instruments; his goal is to achieve even greater control of the tenor saxophone's altissimo range (of which he is already the world's most accomplished practitioner).

Perelman is also a prolific and noted visual artist, whose paintings and sketches have been displayed in numerous exhibitions while earning a place in collections around the world."

"Mark Helias is a renowned bassist, composer and producer who has performed throughout the world for more than four decades with some of the most important and innovative musicians in Jazz and Improvised Music including Don Cherry, Edward Blackwell, Anthony Davis, Dewey Redman, Anthony Braxton, Abbey Lincoln, Cecil Taylor, and Uri Caine among many others. A prolific composer, Helias has written music for two feature films as well as chamber pieces and works for large ensemble and big band. His orchestra piece "Stochasm" was premiered by the American Composers Orchestra in June of 2011. Twelve recordings of his music have been released since 1984, his latest being "The Signal Maker" on the Intakt label. He teaches at Sarah Lawrence College, and SIM (School for Improvisational Music) in Brookyn, NY."

"Thomas "Tom" Rainey (born 1957, Santa Barbara, California) is an American drummer.

After attending Berklee College of Music he moved to New York in 1979. He has played with American jazz saxophonist and composer Tim Berne, and also with Nels Cline, Fred Hersch, Tony Malaby, Tom Varner, Drew Gress, Kenny Werner, Mark Helias, and Simon Nabatov. A prolific session musician, he has appeared on close to eighty recordings over a career spanning over 25 years.

He released his own first album, Pool School (Clean Feed), in 2010."