For players who have mastered the standard method of the trombone, Method for Bass Trombone and F attachment for tenor trombone focuses on the complexities of the thumb valve. The studies offered were designed to demonstrate the challenges of playing thumb valve as a part of a standard symphonic repertoire. Containing two parts; part 1-explanations of the valve, positioning, staccatos, legatos and thumb coordination, chromatics and triads, part 2- studies and exercises, this book gives players the chance to enhance their talent with a difficult key.