What does Jimboy do when he comes home in "Guitar?" Why might he do this?

In "Guitar", Jimboy has come home and is playing his guitar and singing. Harriet is singing with him, as they have done since she was a little girl when Jimboy would come home. He comes home and plays music and sings with Harriet because he has had a tough time getting by without his family while on the road and wants to spend some time relaxing and enjoying himself.