원본: Method for Slide Trombone in B-flat. to point out the little things that I had ignored or didn't play correctly. Otto Langey.
번역: B-플랫 슬라이드 트롬본을위한 방법. 오토 Langey. 트롬본 악보. 고급. Method for Slide Trombone in B-flat composed by Otto Langey. 1851년부터 1922년까지. 랄프 사우어로 정렬. 방법 예약.