Carl Fischer The Double Valve Bass Trombone Method: method for bass trombone with single valve in F, double valve in Eb, double valve in D and "Independent" 2nd valve in Gb, by Alan Raph, ISBN 9780825835841, ISMN 9790060064630, CF 4808, 23 x 30.5 cm, 72 pages, in English language / Carl Fischer
