"Paul William Rutherford (29 February 1940 - 5 August 2007) was an English free improvising trombonist. Born in Greenwich, South East London, Rutherford initially played saxophone but switched to trombone. During the 1960s, he taught at the Guildhall School of Music and Drama.

In 1970, Rutherford, guitarist Derek Bailey and bassist Barry Guy formed the improvising group Iskra 1903, which lasted until 1973. The formation was documented on a double album from Incus, later reissued with much bonus material on the 3-CD set Chapter One (Emanem, 2000). A film soundtrack was separately released as Buzz Soundtrack. Iskra 1903 was one of the earliest free improvising groups to omit a drummer/percussionist, permitting the players to explore a range of textures and dynamics which set it apart from such other contemporary improvising ensembles as SME and AMM. The group's unusual name is the Russian word for "spark"; it was the title of the Iskra revolutionary newspaper edited by Lenin. The "1903" designation means "20th century music for trio"; occasionally Evan Parker played with the group (Iskra 1904) and Rutherford also at one point assembled a 12-piece ensemble called, inevitably, Iskra 1912. The group was later revived with Philipp Wachsmann replacing Bailey, a phase of the group's life that lasted from roughly 1977 to 1995; its earlier work is documented on Chapter Two (Emanem, 2006) and its final recordings were issued on Maya (Iskra 1903) and Emanem (Frankfurt 1991).

Rutherford also played with Globe Unity Orchestra, London Jazz Composer's Orchestra, Centipede, the Mike Westbrook Orchestra, and the Orckestra, a merger of avant-rock group Henry Cow, the Mike Westbrook Brass Band and folk singer Frankie Armstrong. He also played a very small number of gigs with Soft Machine. He is perhaps most famous for solo trombone improvisations. His album The Gentle Harm of the Bourgeoisie is a landmark recording in solo trombone and his 1983 Trio album Gheim, recorded at the Bracknell Jazz Festival is another acclaimed work.

Rutherford died of cirrhosis of the liver and a ruptured aorta on 5 August 2007, aged 67."

"George Lowen Coxhill (19 September 1932 - 10 July 2012), generally known as Lol Coxhill, was an English free improvising saxophonist and raconteur. He played the soprano or sopranino saxophone. Coxhill was born to George Compton Coxhill and Mabel Margaret Coxhill (née Motton) at Portsmouth, Hampshire, UK. He grew up in Aylesbury, Buckinghamshire, and bought his first saxophone in 1947. After national service he became a busy semi-professional musician, touring US airbases with Denzil Bailey's Afro-Cubists and the Graham Fleming Combo. In the 1960s he played with visiting American blues, soul and jazz musicians including Rufus Thomas, Mose Allison, Otis Spann, and Champion Jack Dupree. He also developed his practice of playing unaccompanied solo saxophone, often busking in informal performance situations. Other than his solo playing, he performed mostly as a sideman or as an equal collaborator, rather than a conventional leader - there was no regular Lol Coxhill Trio or Quartet as would normally be expected of a saxophonist. Instead he had many intermittent but long-lasting collaborations with like-minded musicians.

In the late 1960s and early 1970s, he was a member of Canterbury scene bands Carol Grimes and Delivery and then Kevin Ayers and the Whole World. He became known for his solo playing and for work in duets with pianist Steve Miller and guitarist G. F. Fitzgerald. He was thought to have largely inspired Joni Mitchell's song "For Free", while busking solo on the old footbridge which formed part of the Hungerford Bridge between Waterloo and Charing Cross. Coxhill collaborated with other musicians including Mike Oldfield, Morgan Fisher (of Mott the Hoople), Chris McGregor's Brotherhood of Breath and its musical descendant The Dedication Orchestra, Django Bates, the Damned, Hugh Metcalfe, Derek Bailey and performance art group Welfare State.

He often worked in small collaborative groups with semi-humorous names such as the Johnny Rondo Duo or Trio (with pianist Dave Holland - not the bassist of the same name), the Melody Four (characteristically a trio, with Tony Coe and Steve Beresford), and The Recedents (with guitarist Mike Cooper and percussionist Roger Turner), known as such because the members were (in Coxhill's words) "all bald", though the name may additionally be a play on the American band the Residents. Typically these bands performed a mix of free improvisation interspersed with ballroom dance tunes and popular songs. There was humour throughout his music but he sometimes felt it necessary to tell audiences that the free playing was not intended as a joke. Coxhill was compere and occasional performer at the Bracknell Jazz Festival, and a raconteur as well as a musician; he often would introduce his music by saying the words, "what I am about to play you may not understand". It was following a performance at Bracknell that he recorded the melodramatic monologue Murder in the Air."

"Torsten Müller (born November 25, 1957 in Hamburg, Germany) is a free improvising bassist in Vancouver, Canada. He plays a 5 string double bass. He lived in Bremen and Hamburg from 1976 to 2001, where he started his musical career and worked as a radio host and producer at Radio Bremen, a public radio and television broadcaster.

He came into the free improvised music scene in the mid 70s, first playing with Free Music Communion (an ensemble with guitarist Herbert Janssen and pianist Udo Bergner) recording three LPs on their own Fremuco Records label. He was a member of the large improvising ensemble King Ubu Orchestra for 10 years.

Torsten Müller has performed concerts all over the world with a diverse array of improvisers, including Evan Parker, John Russell, Jon Rose, Joelle Léandre, John Zorn, Arto Lindsay, Lol Coxhill, Alexander von Schlippenbach, Paul Lovens, Phil Minton, Charles Gayle, Melvin Poore, Paul Rutherford, Peter van Bergen and Alfred Harth.

He moved to Vancouver, Canada in 2001 where he has been performing at the Vancouver International Jazz Festival and acts as co-curator of the annual Time Flies Improvised Music Festival. He plays in various ensembles, including Vancouver based drummer Dylan Van Der Schyff's Bande X and his own ensemble, Hoxha, with British trombonist Paul Rutherford and Dylan Van Der Schyff."