Stompin' at the Savoy

Ella Fitzgerald on her 40th birthday, 25 April 1958, recorded at the Teatro Sistina in Rome.

Liner notes by Phil Schaap:

Count your blessings—the magical voice of Ella Fitzgerald—a treasure of the 20th century [...] but Ella really pulls out all the stops on "Stompin' At the Savoy," which features the only instrumental solo of the concert, a real romp by Oscar Peterson.

It's amazing how she starts out coughing and laughing, sort of like it's a big joke ["How my heart is swayin'" (cough-cough)]. Then Oscar Peterson starts playing at a faster tempo, Ella switches over to skat and it's all pure genius after that ["C'mon Oscar, "roll!" C'mon Oscar, "rock!"]

What happened to music after the late 1950s is a big mystery to me. It started sucking.