If you’re a trombone beginner (or teaching one), buying a of Standard of Excellence Book 1 is a solid investment. It’s the industry standard for a reason: structured, musical, and trombone-friendly. Just don’t trust random PDFs—you’ll miss the audio and may get incomplete or low-quality scans.
test lines for objective evaluation of a student's progress. Visual Aids trombone standard of excellence book 1 pdf