The William Bell Complete Method was designed for Tuba, Trombone, and Baritone, with the intention of giving a well rounded system of study for low brass that covers all areas of modern playing.
This collection give you an opportunity to get all four of Bell’s books at a discount over individual purchase. The full list of books is below, with links to their respective pages in case you want more info. Click through for samples and full write ups. Here is the list: