This edition comes with no CD. You must purchase either the associated CD separately or digitally download the CD 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: . Recognize notes without depending on an instrument. . Identify which notes other musicians are playing. . Instantly know what key a chord progression is in. . Sing or transcribe the notes in a given melody. These are all invaluable tools for both playing and composing music. It takes time to develop a truly exceptional ear. This book presents a long-term process, whereby pitch perception can be steadily and significantly improved. The basic concepts of how to use this method are followed by many pages of exercises making this book a lifelong companion. All exercises in this book should be used with the aforementioned separately available audio CD. This CD has the same title as this book. The audio portion of this book is also available in 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. This book is a required text at New York University and Princeton University and is recommended for music students ages 13 and up.