"Frank Gratkowski, saxophone. Born in Hamburg, 1963.

Started playing the saxophone at 16 and, following a period at the Hamburg Conservatory (Hamburger Musikhochschule), moved in 1985 to study at the Cologne Conservatory of Music with Heiner Wiberny, graduating in 1990.

Further studies with Charlie Mariano, Sal Nistico and Steve Lacy.

Frank Gratkowski has been working as a soloist in various international formations (Grubenklang Orchester, Klaus Koenig Orchester, Musikfabrik NRW, Tony Oxley Celebration Orchestra, Bentje Braam, BikBentBraam, All Ears, Zeitkratzer, WDR Big band, etc.). Since 1990 he has been giving solo performances throughout Europe, Canada and USA. With his first solo program, he was a 1991 prizewinner in the Musik Kreativ contest. The release of the solo CD "Artikulationen" followed the same year and a new one "Artikulationen II" in 2002.

Since 1992 he has been working in a duo with the pianist Georg Graewe (CD "VicissEtudes"). The duo is often extended through the participation of different additional musicians, such as drummer Paul Lovens (CD "Quicksand") and bassist John Lindberg (CD "Arrears").

In 1995 he founded the "Frank Gratkowski Trio" with Dieter Manderscheid (Germany), bass, and Gerry Hemingway (USA), drums, (CDs "Gestalten" and "The Flume Factor" ). In 2000 the trio has been extended to a quartet by Dutch trombonist Wolter Wierbos (CDs "Kollaps", "Spectral Reflections", "Facio" and "Le Vent et la Gorge"). Since 2003 also appearing as a Double Quartet plus Tobias Delius, Herb Robertson, Wilbert DeJoode and Michael Vatcher. In 2005 he got the SWR Jazzprize.

In 1999 the duo with the Italian trombonist Sebastiano Tramontana has been formed and since 2001 Frank Gratkowski has been performing with a trio including Wilbert De Jode (NL) on bass and Achim Kaufmann (D) on piano (CDs "Kwast" and "Unearth"). Since 2006 he's working with the Trio Gratkowski / Brown / Winant (CDs "Wake" and "Vermilion Traces/Donaueschingen 2009"). He is also a co-leader / composer of the Multiple Joy[ce] Orchestra and got a commission to compose for the ensemble Apartment House by "November Music " (Den Bosch NL) and the "Huddersfield Comtemporary Music Fesitival" (England) in 2009. Further actual projects are Fo[u]r Alto, a saxophone ensemble dedicated to microtonal music and "Artikulationen E" a solo program for saxophone with 8 channel live electronic.

Frank Gratkowski played on nearly every German and on numerous international Jazz and contemporary music 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, Huddersfield, London.

He has been teaching saxophone and ensembles at the Cologne, Berlin and Arnhem Conservatory of Music and is giving workshops all around the world.

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."

"Kent Kessler (born January 28, 1957 in Crawfordsville, Indiana) is an American jazz double-bassist, best known for his work in the Chicago avant-garde jazz scene.

Kessler, born in Crawfordsville, Indiana, grew up on Cape Cod and began playing trombone at age ten. He and his family moved to Chicago when he was 13, and a few years later Kessler became intensely interested in jazz. While attending St. Mary Center for Learning High School, he began taking lessons from Kestutis Stanciauskas (Streetdancer) in electric bass and jazz theory in the middle of the 1970s. In 1977 he formed the ensemble Neutrino Orchestra with percussionist Michael Zerang and guitarists Dan Scanlan and Norbert Funk. He spent three months in Brazil during 1980-81 and spent time studying intermittently at Roosevelt University in Chicago; he and Zerang also formed a group called Musica Menta, which played regularly at Link's Hall.

Kessler began playing double bass in the 1980s and it became his primary instrument when he was asked in 1985 to join the NRG Ensemble, who toured Europe and recorded for ECM Records under the leadership of Hal Russell until his death in 1992. In 1991, he gigged with Zerang and guitarist Chris DeChiara; in need of a hornist, they called Ken Vandermark, who had been considering leaving the Chicago scene. Kessler and Vandermark would go on to collaborate extensively on free jazz and improvisational projects such as the Vandermark 5, the DKV Trio and the Steelwool Trio. In the 1990s and afterwards he worked with Chicago musicians such as Hamid Drake, Fred Anderson, and Joe McPhee, and also with European musicians such as Peter Brötzmann, Mats Gustafsson, Misha Mengelberg, and Luc Houtkamp.

In 2003, Kessler released a solo album, Bull Fiddle, on Okka Disk. Kessler performs alone on nine of the twelve tracks, and with Michael Zerang on three."

"Hamid Drake (born August 3, 1955) is an American jazz drummer and percussionist. He lives in Chicago, IL but spends a great deal of time touring worldwide. By the close of the 1990s, Hamid Drake was widely regarded as one of the best percussionists in jazz and avant improvised music. Incorporating Afro-Cuban, Indian, and African percussion instruments and influence, in addition to using the standard trap set, Drake has collaborated extensively with top free-jazz improvisers. Drake also has performed world music; by the late 70s, he was a member of Foday Musa Suso's Mandingo Griot Society and has played reggae throughout his career.

Drake has worked with trumpeter Don Cherry, pianist Herbie Hancock, saxophonists Pharoah Sanders, Fred Anderson, Archie Shepp and David Murray and bassists Reggie Workman and William Parker (in a large number of lineups)

He studied drums extensively, including eastern and Caribbean styles. He frequently plays without sticks; using his hands to develop subtle commanding undertones. His tabla playing is notable for his subtlety and flair. Drake's questing nature and his interest in Caribbean percussion led to a deep involvement with reggae."

"Georg Graewe began composing and performing professionally at the age of 15. He has since been leading a variety of ensembles - ranging from trio to chamber orchestra formats - which have involved some of the leading instrumentalists in contemporary music. His compositions, which include chamber music and works for full orchestra as well as scores for films, theater productions, radio drama, and video, have been performed and broadcast around the world.

Graewe has had a long-standing trio with Dutch cellist Ernst Reijseger and US-based percussionist Gerry Hemingway since 1989. He has also performed and/or recorded with Anthony Braxton, Evan Parker, Dave Douglas, Phil Minton, Roscoe Mitchell, Barry Guy, Barre Phillips, Hamid Drake, John Butcher, Robert Dick, John Butcher, Mark Dresser among others.

Over the last 10 years, he has also written three operas. Kopenhagen (based on the same-titled play by Michael Frayn) was produced by OPER KÖLN (Cologne Opera House) in 2003. His second opera, Quicksilver, (a commission by Semperoper Dresden) came out in November 2006. And his most recent opera, Barbara Strozzi oder die Avantgarde der Liebe, was staged by Theater Luzern in Switzerland in 2010 and Oper Bonn in Germany in 2011.

Since 1999, Graewe has been closely associated with CNMAT (Center for New Music and Audio Technology) at UC Berkeley. From 2002 - 2007, he taught at Hochschule für Musik Hanns Eisler in Berlin.

In 2010, Graewe curated a series of 27 events that presented different aspects of resonance between music, poetry, visual arts, and science as part of the European Cultural Capital RUHR 2010. A catalogue plus DVD edition documenting this project has been published on his own Random Acoustics label."