Duke Ellington in Zurich on October 9 1959.
This is a bit of a different clip. It gives you a bit of an idea what happened on the other side of the screen. How some of the musicians arrive on stage at the very last minute. A certain tension, the stage hands totally unconcerned with the presence of the bassist are just there to do a job. On cue they open the curtain, the Duke walks on while the band plays their signature tune. Duke all relaxed greets his crowd and the show is on the way!