On Sept. 21, Art on theMART, the largest permanent digital art projection in the world, will unveil new site-specific commissions by Charles Atlas and Petra Cortright. The program will also feature extended viewing of select soliloquies by Year of Chicago Theatre artist John Boesche. The approximately 25 minute program will be unveiled with a free public launch event at 6:30 p.m. on September 21 in alignment with EXPO ART WEEK. The event will feature food vendors and entertainment on Wacker Dr.