"Irène Schweizer (born 2 June 1941) is a Swiss jazz and free improvising pianist. She was born in Schaffhausen, in 1941. She has performed and recorded numerous solo piano performances as well as performing as part of the Feminist Improvising Group, whose members include Lindsay Cooper, Maggie Nichols, Georgie Born and Sally Potter. She has also performed a series of duets with drummers Pierre Favre, Louis Moholo, Andrew Cyrille, Günter Sommer, Han Bennink, Hamid Drake, as well as in trio and quartet sessions with others, including John Tchicai, Evan Parker and Peter Kowald. With Yusef Lateef, Uli Trepte and Mani Neumeier she performed at the Montreux Jazz Festival in 1967. One of her most enduring collaborations is with the improvising musician Rüdiger Carl (de)."

"Reginald "Reggie" Workman (born June 26, 1937 in Philadelphia, Pennsylvania) is an American avant-garde jazz and hard bop double bassist, recognized for his work with both John Coltrane and Art Blakey.

Workman was a member of jazz groups led by Gigi Gryce, Roy Haynes, Wayne Shorter and Red Garland. In 1961, Workman joined the John Coltrane Quartet, replacing Steve Davis. He was present for the saxophonist's Live at the Village Vanguard sessions, and also recorded with a second bassist (Art Davis) on the 1961 album, OlŽ Coltrane. After a European tour, Workman left Coltrane's group at the end of the year. Workman also played with James Moody, Art Blakey's Jazz Messengers, Yusef Lateef, Pharoah Sanders, Herbie Mann and Thelonious Monk. He has recorded with Archie Shepp, Lee Morgan and David Murray.

He is currently a professor at The New School for Jazz and Contemporary Music in New York City, and is a member of the group, Trio 3, with Oliver Lake and Andrew Cyrille."

"Andrew Charles Cyrille (born November 10, 1939) is an American avant-garde jazz drummer. Throughout his career, he has performed both as a leader and a sideman in the bands of Walt Dickerson and Cecil Taylor, among others.

Cyrille was born on November 10, 1939, in Brooklyn, New York into a Haitian family. He began studying science at St. John's University, but was already playing jazz in the evenings and switched his studies to the Juilliard School. His first drum teachers were fellow Brooklyn-based drummers Willie Jones and Lenny McBrowne; through them, Cyrille met Max Roach. Nonetheless, Cyrille became a disciple of Philly Joe Jones, who in some performances such as Time Waits used Cyrille's drum kit.

His first professional engagement was as an accompanist of singer Nellie Lutcher, and he had an early recording session with Coleman Hawkins. Trumpeter Ted Curson introduced him to pianist Cecil Taylor when Cyrille was 18.

He joined the Cecil Taylor unit in 1964, and stayed for about 10 years, eventually performing drum duos with Milford Graves. In addition to recording as a bandleader, he has recorded and/or performed with musicians such as David Murray, Irène Schweizer, Marilyn Crispell, Carla Bley, Butch Morris and Reggie Workman among others. Cyrille is currently a member of the group, Trio 3, with Oliver Lake and Reggie Workman."

"Oliver Lake (born September 14, 1942) is an American jazz saxophonist, flutist, composer and poet. He is known mainly for alto saxophone but he also performs on soprano and flute.

During the 1960s Lake worked with the Black Artists Group in St. Louis. In 1977 he founded the World Saxophone Quartet with David Murray, Julius Hemphill, and Hamiet Bluiett. He has worked in the group Trio 3 with Reggie Workman and Andrew Cyrille. He is the father of drummer Gene Lake.

Lake has been a resident of Montclair, New Jersey."