lightmotif

noun
UK /ˈlaɪt məʊˌtiːf/
US /ˈlaɪt moʊˌtiːf/

A lightmotif is a short tune that keeps coming back in a piece of music.

The lightmotif played every time the hero appeared on stage.


OTHER MEANINGS

2. A repeated idea or image that appears again and again in a story or artwork.

The red umbrella is a lightmotif throughout the film.

3. A small, bright decorative pattern used in design.

The wallpaper featured a lightmotif of tiny stars.

4. A recurring feeling or thought in someone's mind.

Hope was the lightmotif of her diary entries.