Ko-Ko (matrix: BS044889-2, Victor #: 26577-A), recorded Chicago, March 6, 1940.
Conga Brava (matrix: BS049015-1, Victor #: 26577-B), recorded Chicago, March 15, 1940.
Duke Ellington and his Famous Orchestra:
Duke Ellington (piano), O. Hardwick, H. Carney, J. Hodges, B. Biggard, B. Webster (saxes), R. Stewart, C. Williams, W. Jones (trumpets), J. Nanton, J. Tizol, L. Brown (trombones), F. Guy (guitar), J. Blanton (bass), S. Greer (drums).