This edition comes with no CD. You must purchase the CD separately or digitally download the CDs from an on-line vendor. Otherwise this book is exactly the same as the book/CD edition. Just as an artist must know every color in order to create a beautiful painting, a musician must know and hear all the notes of the musical "palette" in order to create good music. This Ear Training method has been developed to teach the student how to hear the way musical sounds are organized within a key. With proper application, the student will be able to instantly recognize: Which notes other musicians are playing. What key a chord progression is in. What the notes in a given melody are. These are all invaluable tools for both playing and composing music. This advanced level is recommended for students who have worked with the intermediate level and now wish to perfect their skills. The CD for this book is entitled: Ear Training One Note Advanced, it is available in CD or MP3 format. Both formats can be purchased from various on-line vendors. A list of recommended vendors can be found on the muse-eek.com website. By studying the method presented within this book and speeding up your recognition skills by listening to the CD a student will find that their whole preception of hearing music will change. This book is a required text at New York University and Princeton University, and is recommended for beginning music students ages 13 and up.