Definition of lilts:
(v) :
(intransitive) To do something rhythmically, with animation and quickness, usually of music.
(v) :
(intransitive) To utter with spirit, animation, or gaiety; to sing with spirit and liveliness.
(n) :
A lively song or dance; a cheerful tune.
(v) :
(intransitive) To sing cheerfully, especially in Gaelic.
(n) :
A cheerful or melodious accent when speaking.
(n) :
Animated, brisk motion; spirited rhythm; sprightliness.