FRIDAY, MAY 10 FORM & SUBSTANCE: Projection Mapping in Contemporary Art, music by Archie Pelago, Braille, Nooka Jones, more at Gowanus Ballroom [10PM/$10] Projection Mapping has had a profound impact on dance music visuals in the last few years. Amon Tobin’s ISAM was many people’s first exposure to it, but there are hundreds of other