So you love musicals. You raved about Rent. You followed Glee with glee. You were enchanted by Wicked and bewitched by Enchanted. You just can’t “Let It Go.” Well, then, you must go see Idina Menzel when she brings her sack of Broadway hits to Charlotte. Her latest album is idina — with a small “i.” But there’s nothing small about this woman’s voice. And to think, her mom was a therapist and her dad was a pajama salesman. A Broadway career was inevitable.