"It's the day of Momo's very first piano recital, and she is terribly nervous. Today is the day of a little mouseling's very first performance, too, and she's just as nervous as Momo. The mouseling invites Momo to watch her performance. Momo follows the mouseling through a small door backstage, where she's met with an amazing sight: an elaborate miniature theatre, and an audience of finely dressed mice! When the Grand Mouse-ter takes the stage, a...