"Born in Warwick, Rhode Island on September 22nd, 1964, Ken Vandermark began studying the tenor saxophone at the age of 16. Since graduating with a degree in Film and Communications from McGill University during the spring of 1986, his primary creative emphasis has been the exploration of contemporary music that deals directly with advanced methods of improvisation. In 1989, he moved to Chicago from Boston, and has worked continuously from the early 1990's onward, both as a performer and organizer in North America and Europe, recording in a large array of contexts, with many internationally renowned musicians (such as Fred Anderson, Ab Baars, Peter Brötzmann, Tim Daisy, Hamid Drake, Terrie Ex, Mats Gustafsson, Devin Hoff, Christof Kurzmann, Fred Lonberg-Holm, Joe McPhee, Paal Nilssen-Love, Paul Lytton, Andy Moor, Joe Morris, and Nate Wooley). His current activity includes work with Made To Break, The Resonance Ensemble, Side A, Lean Left, Fire Room, the DKV Trio, and duos with Paal Nilssen-Love and Tim Daisy; in addition, he is the music director of the experimental Pop band, The Margots. More than half of each year is spent touring in Europe, North America, and Japan, and his concerts and numerous recordings have been critically acclaimed both at home and abroad. In addition to the tenor sax, he also plays the bass and Bb clarinet, and baritone saxophone. In 1999 he was awarded the MacArthur prize for music."

"Fred Lonberg-Holm (born 1962) is an American cellist based in Chicago. He relocated from New York City to Chicago in 1995. Lonberg-Holm is most identified with playing free improvisation and free jazz. He is also a composer of concert works. As a session musician and arranger, he is credited on many rock, pop, and country records. Lonberg-Holm currently leads the Valentine Trio, with Jason Roebke (bass) and Frank Rosaly (drums). This jazz trio performs original compositions as well as tunes by both jazz composers (e.g. Sun Ra) and pop songwriters (e.g. Jeff Tweedy, Syd Barrett). The group released its first album Terminal Valentine, in 2007, which was reviewed by AllAboutJazz critic Nils Jacobson.

He coordinates and directs performances of his Lightbox Orchestra, an improvising ensemble with a flexible, ever-changing membership. Lonberg-Holm does not play an instrument in this group, but rather conducts its non-idiomatic improvisations via the "lightbox" and by holding up handwritten signs. The lightbox contains a light bulb for each musician which Lonberg-Holm switches on or off to suggest when they should play. Collective groups of which Lonberg-Holm is a member include Terminal 4 who released an album, in 2003, called When I'm Falling that received four and a half stars, and AMG Album Pick by Allmusic, and it was reviewed by Allmusic's Joslyn Layne, The Boxhead Ensemble, Pillow, the Lonberg-Holm/Kessler/Zerang trio (with Kent Kessler and Michael Zerang), and the Dörner/Lonberg-Holm duo (with Axel Dörner).

Among groups led by other people, he is a member of the Vandermark 5, the Joe McPhee Trio, the Peter Brötzmann Chicago Tentet, Keefe Jackson's Fast Citizens, and Ken Vandermark's Territory Band. When he lived in New York, Lonberg-Holm frequently collaborated with the rock group God Is My Co-Pilot pianist and composer Anthony Coleman as well as multi-instrumentalist Paul Duncan of Warm Ghost. In Chicago, he has worked with Jim O'Rourke, Bobby Conn (on "Llovessonngs" [1999] and "The Golden Age" [2001]), The Flying Luttenbachers, Lake Of Dracula, Wilco, Rivulets, Mats Gustafsson, Sten Sandell, Jaap Blonk, John Butcher, and a great many others.

Lonberg-Holm's concert works have been premiered by William Winant, Carrie Biolo, the Austin New Music Co-Op, Subtropics Ensemble, Duo Atypica, the Schanzer/Speach Duo, New Winds, Paul Hoskin, Kevin Norton, the E.S.P. Ensemble, and others. His scores for dance have been performed at the Brooklyn Academy of Music and Dance Theater Workshop as well as many other venues. He is a former composition student of Anthony Braxton and Morton Feldman. He performed improvised music in the role of a troubled composer who finds inspiration in the love of a couple he spots on the street in a short film for the Playboy channel."