It’s indeed possible for a mouse to compose music, if you have a player piano.
Melody is a young music-loving mouse who can neatly chew holes in things. In a bistro, she watches people play pianos and in the piano factory she watches as the scrolls play pianos. A mad chase has her scrambling up a scroll, and her chewing leads to her first musical composition.
We’re after a book design that is as engaging as this story—a colourful story needs colourful pages. For a story that takes place in the Roaring 20’s, the pages need appropriate type faces and ornamentation. A glossary and a special stamp collection of important mice in history add to the book.