Original: Orchesterstudien Klarinette, Heft 1. A.Adam. Mozart, Beethoven u. Clarinet sheet music. Orchesterstudien Klarinette, Heft 1. Roscher.
Translation: Orchestral excerpts clarinet, Issue 1. , Violin Concerto op. Orchestral excerpts clarinet, Issue 1. composed by Heyneck.