As part of the River-to-River festival, ((audience)) and Abby Echiverri present Source of Uncertainty Part I, on June 28th from 8pm-midnight. Alessandro Cortini, Carlos Giffoni, Mark Verbos, Xeno and Oaklander, and Loud Objects will be performing. This analog synthesizer fair is free and will be held in Lower Manhattan's @Seaport, 210 Front Street. For more information visit: http://rivertorivernyc.com/events/source-uncertainty-i