A style or category of art, music, or literature. Genre rests around a relationship between similarities and differences. You want something that’s predictable and expected but also innovative and unexpected.

Genres are important to institutions, companies and audiences.

. . . saddled with conventions and stereotypes, formulas and
clichés and all of these limitations were codified in specific genres. This was the very foundation of the studio system and audiences love genre pictures . . .Scorcese, A personal Journey through American Cinema (1995).