Jaunty tunes are a type of music that is characterized by its upbeat and cheerful sound. The term 'jaunty tunes' can be used to describe a variety of genres, including jazz, pop, and rock. The crossword solution 'lilts' is a perfect word to describe this type of music, as it implies a light and airy sound. Jaunty tunes are often used in films and television shows to create a happy and uplifting atmosphere.