In early 1974, Bruce Springsteen was in danger of being dropped by his record label. One show would change the course of his career. Springsteen and the E Street Band opened for Bonnie Raitt at the Harvard Square Theatre in Cambridge, capturing the attention of Jon Landau, music critic for Rolling Stone and columnist for Cambridge-based The Real Paper, who was in the audience. He'd write, "I saw rock and roll future and its name is Bruce Springsteen." Photographer Barry Schneier was also there that night, and his photographs, entirely unseen for decades, are the only visual record of the performance. Today at 2 p.m. at the Rock Hall, Schneider will talk about his new book, Bruce Springsteen: Rock and Roll Future, which features photos from that show. (Niesel)