De Haske Bläserklasse Clarinet Boehm 2, Yamaha Bläserklasse, Essential Elements, Clarinet/Clarinet in B, Boehm, Vol.2: Boehm system, the complete method for music lessons in schools and wind orchestras, ISBN 9789043114684, 0865.02 DHE, A4, 48 pages, in German language, incl.CD with play-alongs