原文: 30 New Studies in Technique, Op. 849. Carl Czerny. 30 New Studies in Technique, Op. 849 composed by Carl Czerny. 1791-1857.
翻訳: 30 New Studies in Technique piano sheet music, by Carl Czerny. - 54 pages - Reprinted from Ruthardt edition. カール·ツェルニー.