signature tune

noun

1. theme song ( def 2 ).

signature tune

noun

1. a melody used to introduce or identify a television or radio programme, a dance band, a performer, etc Also called (esp US and Canadian)theme song

Word History and Origins

Origin of signature tune¹

First recorded in 1930–35

Example Sentences

Brubeck and the band offer a flawless rendition of their signature tune in this appearance from the early 1960s.

From The Daily Beast