The Clef Club was the city’s preeminent African American musical institution from 1935 to 1971, a time period that coincided with the golden age of Philly jazz. With such illustrious members as Dizzy Gillespie, John Coltrane, Benny Golson, the Heath Brothers, Jimmy Smith, Grover Washington, and others, the Clef Club’s archives are an invaluable historical resource documenting Philadelphia’s world-famous jazz tradition.