Can anyone name that song that played when Frank was sitting on the couch and listening at the end of the episode Jazz Records? What song was playing?

I know it was by Oscar something or other, because I remember Ray saying "Playing Oscar, you swinging Jazz Cat!!" but idk the name or even his last name!!

His name is Oscar Peterson. But I am asking what song of his was playing at the end of that episode?

oh, That... I dont know... lol sorry!! :/