Mark 79100 said:

"Stories about songs: I keep a mental portfolio in my head of the history of certain popular songs. Mostly stuff I get off the Internet. To break up the music and my general patter I’ll tell the story of how some songs came to be written. I even take liberties……make up lines as I go along to augment the tale ."

I did something similar and started having a trivia quiz with the answer being a song title and I then played the song. Later, I started a trivia session with questions related to music. This was very popular and killed some time.