Overhead view of a jam session between a number of jazz musicians, held in the photographer's studio, New York, New York, 1943. Among those visible are Duke Ellington (1899 - 1974) on piano and Mezz Mezzrow (1899 - 1972) on clarinet (center, in white short and braces); among other artists who participated in the all night session were Eddie Heywood, Pearl Primus, Teddy Wilson, Lou McGarity, Bobby Hackett, Sidney Catlett, John Simons, Mary Lou Williams, Irving Fazola, Eddie Condon, Wilbur De Paris, Franz Jackson, Billie Holiday, James P. Johnson, Cozy Cole, Al Mott, Josh White, Lester Young, and Count Basie.