Paul Harris John H. Davies: Improve Your Sight-Reading! Trombone Grades 1 to 5:

Sight reading exercises for the Trombone grades 1-5. Divided into twelve stages. The ability to sight-read is a most important part of your training as a player whether you intend to play professionally or simply for enjoyment. If you become a good sight-reader you will be able to learn pieces more quickly and to play in ensembles and orchestras with confidence. Furthermore in grade examinations good performance in the sight-reading test will result in useful extra marks.