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Books about Kopprasch:
60 Studies - Volume I By C. Kopprasch. Edited By James Chambers. For Horn Solo. by C. Kopprasch (1960)
Kopprasch 60 Studies for Trumpet (Volume 2) (1948)
60 Studies for Trumpet Book 1. Kopprasch by Kopprasch and Roger Voisin (1963)
60 Selected Studies for BB Flat Tuba by C. Kopprasch  by C. Kopprasch (Jun 14, 1904)
C. Kopprasch: Sixty Selected Studies for French Horn Book II by FR. Gumbert and Albin Frehse (1939)
Southern Music 50 Etudes Op.6 for French Horn-Kopprasch
Sixty Selected Studies for French Horn, Book II by Kopprasch published by Carl Fischer Music (1970) (0001)
Wiki information Kopprasch:
Georg Kopprasch was a German composer and horn player. Very little is known about his life, except that he was born sometime before 1800 and continued his career as a horn player at least until 1832. Kopprasch is mainly known for his second set of...