"George E. Lewis is the Edwin H. Case Professor of American Music at Columbia University. A 2015 Fellow of the American Academy of Arts and Sciences and a Corresponding Fellow of the British Academy, Lewis has received a MacArthur Fellowship (2002), a Guggenheim Fellowship (2015), a United States Artists Walker Fellowship (2011), an Alpert Award in the Arts (1999), and fellowships from the National Endowment for the Arts. In 2015, Lewis received the degree of Doctor of Music (DMus, honoris causa) from the University of Edinburgh.

A member of the Association for the Advancement of Creative Musicians (AACM) since 1971, Lewis's work in electronic and computer music, computer-based multimedia installations, and notated and improvisative forms is documented on more than 140 recordings. His work has been presented by the BBC Scottish Symphony Orchestra, London Philharmonia Orchestra, Radio-Sinfonieorchester Stuttgart, Boston Modern Orchestra Project, Talea Ensemble, Dinosaur Annex, Ensemble Pamplemousse, Wet Ink, Ensemble Erik Satie, Eco Ensemble, and others, with commissions from American Composers Orchestra, International Contemporary Ensemble, Harvestworks, Ensemble Either/Or, Orkestra Futura, Turning Point Ensemble, San Francisco Contemporary Music Players, 2010 Vancouver Cultural Olympiad, IRCAM, Glasgow Improvisers Orchestra, and others. Lewis has served as Ernest Bloch Visiting Professor of Music, University of California, Berkeley; Paul Fromm Composer in Residence, American Academy in Rome; Resident Scholar, Center for Disciplinary Innovation, University of Chicago; and CAC Fitt Artist In Residence, Brown University.

Lewis received the 2012 SEAMUS Award from the Society for Electro-Acoustic Music in the United States, and his book, A Power Stronger Than Itself: The AACM and American Experimental Music (University of Chicago Press, 2008) received the American Book Award and the American Musicological Society's Music in American Culture Award. Lewis is co-editor of the two-volume Oxford Handbook of Critical Improvisation Studies (2016), and his opera Afterword, commissioned by the Gray Center for Arts and Inquiry at the University of Chicago, premiered at the Museum of Contemporary Art Chicago in October 2015 and has been performed in the United States, United Kingdom, and the Czech Republic.

Professor Lewis came to Columbia in 2004, having previously taught at the University of California, San Diego, Mills College, the School of the Art Institute of Chicago, the Koninklijke Conservatorium Den Haag, and Simon Fraser University's Contemporary Arts Summer Institute. Lewis studied composition with Muhal Richard Abrams at the AACM School of Music, and trombone with Dean Hey."

"Joëlle Léandre is a famous French Bassist and is known for her collaborations with other musicians in the field of improvised music. Born in France on September 12th, 1951, she made her music debut in 1984 with Les Douze Sons. Her childhood was filled with music, and she was particularly interested in the piano during her early years. In her later years, she developed an interest in double bass, which won her many honors and scholarships during her education. Her double bass teacher Pierre Delescluse encouraged her to apply to the Conservatoire National Superieur de Musique de Paris, where she was formally trained and noticed for her talent in the bass. Her outstanding musicianship took her to the United States and to the Centre for Creative and Performing Arts in Buffalo through a scholarship. In the United States, she expanded her network and met some of the best composers, such as John Cage, Giacinto Scelsi, and Morton Feldman. Among them, John Cage greatly influenced her music and compositions. Her time in the United States also enabled her to experience downtown New York music, which was another significant influence that led to her continued involvement in the field of improvised music.

Some of her notable collaborations in the field of contemporary music are with Pierre Boulez, Merce Cunningham, John Cage, and Giacinto Scelsi. Among them, John Cage and Giacinto Scelsi were the biggest influences in her life and music. In an interview, Joëlle Léandre said that John Cage was her spiritual father and changed her perception of sound and music. In another interview, she tells how Giacinto Scelsi allowed her to discover her own music and how his music transported her into a new world of improved consciousness. In the field of jazz music, she collaborated with Derek Bailey, William Parker, and Sebi Tramontana. Her music was owned and distributed by different music labels, including FMP, Leo, RougueArt, and Red Toucan. Some memorable songs and albums she released throughout the years include Instant Replay, Les Douze sons, Trios, Sweet Zee, Frerebet, Joelle et Tetsu, Philippe Fenelon, Voyages, etc. Some of the recent releases include Can You Hear Me and Unleashed. She has also performed live at the Tampere Jazz Festival twice, where popular international artists compete with each other.

Joëlle Léandre is also the member of European Women's Improvising Group (EWIG). The group evolved from the Feminist Improvising Group, and Joëlle Léandre joined the group in 1983. In the early 1900s, she co-founded Les Diaboliques with Irene Schweizer and Maggie Nicols, who were her long-time musician friends. Besides that, she also teaches several classes in prestigious universities about contemporary and improvised music. She has lived in France, Germany, and U.S during her lifetime, teaching at academic institutions in the religions and playing concerts. In 2002, she was invited to Canada as a visiting professor for music and composition."