William Richard Frisell (born March 18, 1951) is an American jazz guitarist, composer and arranger. Frisell first came to prominence at ECM Records in the 1980s, as both a session player and a leader. He went on to work in a variety of contexts, notably as a participant in the Downtown Scene in New York City where he formed a long working relationship with composer and saxophonist John Zorn. He was also a longtime member of veteran drummer Paul Motian's groups from the early 1980s until 2011 (upon Motian’s death). Since the late 1990s, Frisell's output as a bandleader has also integrated prominent elements of folk, country, rock ‘n’ roll and Americana. He has six Grammy nominations, and one win.