Evolving from the rhythmic and social foundation of funk, disco became popular dance music of the 1970s. First emerging in the 1960s, disco was largely ignored by mainstream radio with its exposure primarily in underground clubs that catered to Black, gay, and Latine dancers. DJs were a driving force behind the rising popularity of discos, helping to establish hit songs and shift the focus to new singles. Disco is known for its strong, repetitive beat with syncopated basslines and repetitive vocals centered around love, dancing, and themes of escapism. Electric pianos, synthesizers, electric rhythm guitars, brass, and horns form a unique blend of R&B, funk, and soul, inspiring feelings of freedom and togetherness.