(a) At the original tempo, the rhythm almost conforms to a quintuplet grid. The shapes under the transcription correspond to the ones in the graph.

(b) An alternative tempo redraws the plot according to a triplet (or sextuplet) grid. The diagonal lines mark deadpan triplet/sextuplet positions. Source: Duke Ellington, The Duke: The Essential Collection (1927–1962), Columbia Legacy/Sony Music C3K 65841.