 In August 2012 Frith led a performance of Gravity in San Francisco , California entitled " Fred Frith and Friends play Gravity " . The performers were Frith , Dominique Leone , Jon Leidecker ( Wobbly ) , Aaron Novik , Ava Mendoza , Jordan Glenn , Kasey Knudsen , Lisa Mezzacappa and Marië Abe . Frith led two more performances of Gravity at Roulette in Brooklyn , New York City on 19 and 20 September 2013 , featuring Frith ( guitar / electric bass ) , Leone ( keyboards ) , Leidecker ( sampling ) , Novik ( clarinet / bass clarinet ) , Mendoza ( guitar ) , Abe ( accordion ) , Glenn ( drums ) , Knudsen ( alto saxophone ) , Mezzacappa ( bass ) , Kaethe Hostetter ( violin ) , and William Winant ( percussion ) . 
