Five mice hear wonderful muisic and find that it is a frog choral concert in the park, with no mice allowed. Returning home, they decide to create an orchestra, practice, and finally put on a fantastic show. When the applause dies down, they find there that the frogs in the audience are hiding. But since music is to be shared, the five nice mice share the stage and their music, and the frogs and the mice end up creating music together, in beautiful harmony.