An American musical style that originated in the mid to late 1960s when African American musicians blended soul music, soul jazz and R&B into a rhythmic, danceable new form of music. Funk de-emphasizes melody and harmony and brings a strong rhythmic groove of electric bass and drums to the foreground. Unlike R&B and Soul songs, which had many chord changes, funk songs are often based on an extended vamp on a single chord. Funk typically consists of a complex groove with rhythm instruments such as electric guitar, electric bass, Hammond organ, and drums playing interlocking rhythms. Funk bands sometimes have a horn section of several saxophones, trumpets, and in some cases, a trombone, which plays rhythmic "hits".