This hands-on, step-by-step action plan uses assessment to improve your teaching and your students’ performances. The expanded Second Edition provides examples of how to teach and assess instrumental, choral, and general music students at elementary, middle, and high school levels. This book also describes how to meaningfully self- and peer-assess and set goals for practicing and improving the performances of a group. It includes appendices with actual written and listening tests; outlines of a testing program for band, choir, and orchestra; a glossary of terms and more. New downloadable resources include sample data, tests for all grade levels, music examples, and reference material.