"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."

"French double bass player (born 12 September 1951 in Aix-en-Provence, France), improviser and composer, Joëlle Léandre is one of the dominant figures of the new European music. Trained in orchestral as well as contemporary music, she has played with l'Itinéraire, 2e2m and Pierre Boulez's Ensemble Intercontemporain. Joëlle Léandre has also worked with Merce Cunningham and with John Cage, who has composed especially for her - as have Scelsi, Fénelon, Hersant, Lacy, Campana, Jolas, Clementi and about 40 composers.

As well as working in contemporary music, Léandre has played with some of the great names in jazz and improvisation, such as Derek Bailey, Anthony Braxton, George Lewis, Evan Parker, Irene Schweizer, William Parker, Barre Phillips, Pascal Contet, Steve Lacy, Lauren Newton, Peter Kowald, Urs Leimgruber, Mat Maneri, Roy Campbell, Fred Frith, John Zorn, Mark Naussef, Marilyn Crispell, India Cooke and so many others...

She has written extensively for dance and theater, and has staged a number of multidisciplinary performances. She got the DAAD at Berlin, is welcomed as artist resident at Villa Kujiyama (Kyoto). In 2002, 2004 and 2006, she is Visiting Professor at Mills college, Oakland, CA, Chaire Darius Milhaud, for improvisation and composition. Her work as a composer and a performer, both in solo recitals and a part of ensembles, has put her under the lights of the most prestigious stages of Europe, the Americas and Asia.

From 1981 to 2009, Joëlle Léandre has about 150 recordings to her credit.