"Sweet Emma" Barrett was an American self-taught jazz pianist and singer who worked with the Original Tuxedo Orchestra between 1923 and 1936, first under Papa Celestin, then William Ridgely. She also worked with Armand Piron, John Robichaux, Sidney Desvigne and the Preservation Hall Jazz Band.

The Preservation Hall Jazz Band is a New Orleans jazz band founded in New Orleans by tuba player Allan Jaffe in the early 1960s. The band derives its name from Preservation Hall in the French Quarter. In 2005, the Hall's doors were closed for a period of time due to Hurricane Katrina, but the band continued to tour.