This is a CD of practice pieces by Osamu Kumashiro based on Kopprasch. An explanatory booklet detailing the points of practice for each piece is included, which was very helpful for practice. The CD itself has only been used once. - Title: Kopprasch Sixty Selected Studies for Trumpet - Author: Osamu Kumashiro - Number of Discs: 2 Thank you very much for looking. #Trumpet #Kopprasch #Kopprasch