Three versions of the same composition, played by different artists.
Today: Caravan, As Time Goes By, Mac The Knife, and Summertime.
Caravan: Duke Ellington, Lambert, Hendricks & Ross, Thelonious Monk
As Time Goes By: Billie Holiday, Jonah Jones, Fats Navarro
Mack The Knife: Duke Ellington, Sonny Rollins, The Sextet of Orch. U.S.A.
Summertime: Porgy kills Crow, Gil Evans Orchestra, Coleman Hawkins
