If someone's voice has a lilt in it, the pitch of their voice rises and falls in a pleasant way, as if they were singing. Her voice is child-like, with a West Country lilt. a pleasant pattern of rising and falling sound in someone's voice or in music (lilt (14-20 centuries))
characterized by a buoyant rhythm; "an easy lilting stride"; "the flute broke into a light lilting air"; "a swinging pace"; "a graceful swingy walk"; "a tripping singing measure