Disco emerged in the 1970s from the underground dance clubs of New York City, particularly those serving African American, Latino, and LGBTQ+ communities. Its name comes from the French word 'discotheque.' The rhythm is defined by a relentless four-on-the-floor beat, with the bass drum striking every quarter note to create that unmistakable driving pulse. Typically set between 110 and 130 BPM, the groove is built around syncopated basslines, rhythmic guitar "chanks," lush orchestral strings, and that signature quaver hi-hat pattern. Disco's influence is immeasurable—it laid the groundwork for house, techno, and modern dance-pop, remaining a symbol of liberation and celebration. The genre reached mainstream dominance through films like 'Saturday Night Fever' and artists like Donna Summer, the Bee Gees, and Chic.