John_in_Brisbane found this. According to the gif he sent, words and music are a traditional children's song.

Tell me a story, tell me a story,
Tell me a story and then I'll go to bed;
You promised me you said you would,
You've gotta give in so's I'll be good;
Tell me a story, then I'll go to bed!

midi to Alan of Oz, NWC file to DickG.