This Essential Elements violla workbook published by Hal Leonard is a must-have for music enthusiasts who want to improve their music theory and skills. The workbook is written in English and includes a CD for better learning. With the author, Higgins, the workbook is specifically designed for students who have completed Book 1 of the same series, making it a perfect supplement to your music learning journey. So, if you're looking for an easy-to-understand and comprehensive music theory workbook, this Essential Elements violla workbook is an excellent choice.