I purchased this at full price on Amazon four years ago and have kept it in storage without ever using it. The included CD is also unopened. There are no signs of opening, and it is in very good condition. [Learn the Basics of Jazz Piano] This book provides practice methods to help you reliably play jazz piano. It's designed for beginners and allows you to learn thoroughly from the basics. [Practical with CD] A CD is included to aid in practice, allowing you to learn while listening to actual performances. This helps you develop a sense of rhythm and musical expression. [Various Practice Methods] Various practice methods are introduced, providing a concrete approach to improving your jazz piano playing skills. - Title: Practice Methods to Definitely Play Jazz Piano in 3 Years - Author: Yusuke Hirai - Accessories: With CD - Contents: Introduces practice methods for learning the basics of jazz piano - Publication Year: 2020 - ISBN: 978-4-636-93113-5 Thank you for viewing. ▶︎Note I have a cat. I will clean the product as much as possible before shipping, but there is a possibility that cat hair may get mixed in with the packaging materials. Please purchase only if you understand this.