Dave Blume was a composer and record producer who wrote the 1966 hit "Turn Down Day". It was originally conceived as a jazz tune, but was recorded by the pop group The Cyrkle. In the 1970s, he co-produced several albums featuring the early use of synthesizers and quadraphonic sound. He supplemented his income by working as a copy editor, and later, other positions, for the Los Angeles Times until 1999.