Oriģināls: Method for Slide Trombone in B-flat. to point out the little things that I had ignored or didn't play correctly. Otto Langey.
Tulkojums: Metode Slide trombons ar B-flat. Trombonu notis. Uzlabots. Method for Slide Trombone in B-flat composed by Otto Langey. 1851-1922.
