Pierre Favre is a Swiss jazz drummer and percussionist, born 2 June 1937 in Le Locle, Switzerland.

"When Pierre Favre began to explore new worlds of sound in drumming in the 1960s, he had already played with many internationally renowned Europeans and Americans as well as with prominent big bands. But it pushed him to an independent music. It all started in a trio with bassist George Mraz, then with Peter Kowald on double bass and from the start with Irene Schweizer on piano. "It is," says Pierre Favre, "a stroke of luck in a long, independent and yet joint development.

Searching for the melodic aspects of drums and percussion, Pierre Favre found his way to the solo. Together with Paul Motian, Fredy Studer and Nana Vasconcelos, he formed a percussion ensemble that increased the orchestral possibilities of percussive solo playing. "Singing Drums", a quartet with four percussionists, underwent a further transformation in the form of The "European Chamber Ensemble", a line-up with two percussionists, horns and strings.

In 2004, the city of Zurich honored Pierre Favre with the city's art prize."-Bert Noglik, Pierre Favre website

"George Mraz (born Jiří Mráz; 9 September 1944 - 16 September 2021) was a Czech-born American jazz bassist and alto saxophonist. He was a member of Oscar Peterson's group, and worked with Pepper Adams, Stan Getz, Michel Petrucciani, Stephane Grappelli, Tommy Flanagan, Jimmy Raney, Chet Baker, Barry Harris, Joe Henderson, John Abercrombie, John Scofield, and Richie Beirach, among others.

During the 1970s, he was a member of the New York Jazz Quartet and The Thad Jones/Mel Lewis Orchestra, and in the 1980s a member of Quest. He also appeared with Joe Lovano, Hank Jones and Paul Motian on Lovano's records I'm All For You and Joyous Encounter.

Mraz died on September 16, 2021, in Prague. The immediate cause of death was undisclosed, though he had battled pancreatic cancer in 2016."

"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)."