Download or read book Student Instrumental Course: Duets for Trombone Students, Level I written by Acton Ostling and published by Alfred Music. This book was released on with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Belwin Student Instrumental Course is a course for individual instruction and class instruction of like instruments, at three levels, for all band instruments. Each book is complete in itself, but all books are correlated with each other. Although each book can be used separately, all supplementary books should be used as companion books with the method.