Miles Davis is regarded to be one of the most influential and acclaimed figures in the history of jazz and 20th-century music. Quiet Nights is a mix of situations and sources: Brazilian folk (Prenda Minha, titled Song #2 on the album), Spanish classical (Adelita by guitar pioneer Francisco Trrega, here called Song #1), and a few ballads, including one that stands out from the rest of the big band album: Summer Night, a quintet take featuring Miles playing muted then open trumpet and the start of a new band: tenor saxophonist George Coleman, pianist Victor Feldman, bassist Ron Carter, and drummer Frank Butler.