Sigmund Kopprasch was a notable German composer and music educator, primarily recognized for his contributions to the world of brass music. Born in the 19th century, he is best known for his collection of etudes for trombone, which are widely used by students and professionals alike to develop technical skills and musicality. Kopprasch's etudes are characterized by their melodic lines and technical challenges, making them a staple in the repertoire for brass players. His work has had a lasting impact on brass pedagogy, influencing generations of musicians and contributing to the development of brass performance techniques.