Mark Helias

From - http://en.wikipedia.org/wiki/Mark_Helias

Mark Helias (born October 1, 1950) is an American jazz double bass player and composer who has performed throughout the world for more than three decades. After his studies at Rutgers University (B.A. 1974) and The Yale School of Music (M.M. 1976), he began his international career in the Anthony Braxton Quartet. Up to the present time he has performed with a panoply of world class artists including: Edward Blackwell, Anthony Davis, Dewey Redman, Marcel Khalife, Abbey Lincoln, Oliver Lake, Andrew Cyrille, Marilyn Crispell, Julius Hemphill, Don Byron, Bobby Bradford, Barry Altshul, Ray Anderson, Don Cherry, Cecil Taylor, and Gerry Hemingway.