附註:"Kopprasch wrote 110 etudes for horn: fifty for high horn, and the sixty for low horn in this edition. Perhaps the most famous of all horn studies, these etudes for cor basse, op. 6, were written to help hornists prepare for the rigors of second-horn playing"--Page 2.
Biographical information and notes in English.
Bk. 1. No. 1-34.