The term SATURDAY NIGHT FEVER MUSIC is associated with the popular DISCO music of the 1970s. The crossword solution for this term is DISCO, a five-letter word. DISCO music was characterized by its heavy beat and repetitive rhythms, and it was often played in nightclubs and dance halls. Saturday Night Fever, a 1977 movie starring John Travolta, featured many popular DISCO songs and helped to popularize the genre.