Musical Memory Builders are very simple teaching tools. Research has proven that one of the best ways to instill knowledge in the human brain is to associate that knowledge with a musical melody.
The purpose is to help children memorize. Each song is composed to teach one very specific Bible fact. These are not "stories" in song.
Riding in the car, preparing meals, picking up toys, playing outside, and bath time are all wonderful times for Bible learning to take place because you can sing with your child during all these activities!