The Tribeca Festival \– formerly known as the Tribeca Film Festival — has always been a vital launching pad for music documentaries, with docs on Milli Vanilli, Alicia Keys, Biz Markie, the Indigo Girls and Gloria Gaynor all having premiered just last year alone. This year will be no different, as the New York festival announced an impressive and diverse slate of docs on April 17, with films featuring Avicii, Genesis P-Orridge, Linda Perry, Liza Minnelli and the Montreux Jazz Festival all scheduled to screen when Tribeca kicks off from June 5-16. Check out some of the more exciting Tribeca w…