Alfred's Essentials of Music Theory: Complete Self-Study Course, Book & 2 CDs [With 2cds]This practical, easy to use, self study course is perfect for pianists, guitarists, instrumentalists, vocalists, songwriters, arrangers and composers, and includes ear training CDs to help develop your musical ear. In this all in one theory course, you will learn the essentials of music through 75 concise lessons, practice your music reading and writing skills in the exercises, improve your listening skills with the enclosed ear training CDs, and test