Jem Aswad Senior Music EditorWith 1989’s “Three Feet High and Rising,” the Long Island rap trio De La Soul created one of the truly groundbreaking albums in hip-hop history, bringing a happy, psychedelic, flower-bedecked vibe — dubbed “the D.A.I.S.Y. Age” — to a genre that had largely been musically and lyrically aggressive and/or self-aggrandizing up to that point.