Multi-instrumentalist, singer, song leader, composer and instrument designer Mark Stewart has been heard around the world performing old and new music. Since 1998 he has recorded, toured and been Musical Director with Paul Simon.  A founding member of the Bang on a Can All-Stars, the comic duo Polygraph Lounge with keyboard & theremin wizard Rob Schwimmer, Mark has also worked with Steve Reich, Sting, Anthony Braxton, Bob Dylan, Wynton Marsalis, Meredith Monk, Stevie Wonder, Phillip Glass, Iva Bittova, Bruce Springsteen, Terry Riley, Ornette Coleman, Edie Brickell, Don Byron, Joan Baez, Hugh Masakela, Paul McCartney, Cecil Taylor, Bill Frisell, Jimmy Cliff, Charles Wourinen, the Everly Brothers, Steve Gadd, Fred Frith, Alison Krauss, David Krakauer, Bobby McFerrin, David Byrne, James Taylor, The Roches, Aaron Neville, Bette Midler, and Marc Ribot. He is the inventor of the WhirlyCopter, a bicycle-powered Pythagorean choir of singing tubes and the Big Boing, a 24 ft. sonic banquet table Mbira that seats 30 children playing 490 found objects. Mark is the curator at MASS MoCA of the immersive Gunnar Schonbeck exhibit of musical instruments. He  can be heard on Blue Note, Warner Bros., Sony, Sony Classical, Point/Polygram, Nonesuch, Label Bleu, Resonance Magnetique, Cantaloupe and CRI recordings. He lives in New York City making his living playing and writing popular music, semi-popular music and unpopular music, and designing instruments that everyone can play.