When you buy a Casio keyboard, it often comes with a printed "Song Book" tucked inside the packaging. This isn't just a random collection of sheet music; it is a technical manual disguised as a repertoire collection.
Official versions frequently include introductory guides in over 10 languages, including English, Spanish, and Japanese. System Integration: It is designed to work alongside Casio's 3-Step Lesson System Casio Piano Song Book Pdf