Disco is a genre of dance music and a subculture that emerged in the late 1960s from the United States' urban nightlife scene, particularly in African-American, Italian-American and Latino communities. Its sound is typified by four-on-the-floor beats, syncopated basslines, string sections, brass and horns, electric pianos, synthesizers, and electric rhythm guitars.
https://en.wikipedia.org/wiki/Disco