Georg Kopprasch was a German composer

Composer

A composer is a person who creates music, either by musical notation or oral tradition, for interpretation and performance, or through direct manipulation of sonic material through electronic media...

 and horn

Horn (instrument)

The horn is a brass instrument consisting of about of tubing wrapped into a coil with a flared bell. A musician who plays the horn is called a horn player ....

 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 Horn etudes, op. 6. This set of 60 etudes is often published as two books, neither of which should be confused with his first set of etudes, op. 5.

Kopprasch's Sixty Selected Studies for French Horn is studied by the majority of horn students studying at an advanced level. Most of the etudes focus on technical problems relating to the high range of the Horn. Due to a misread by an early editor, these studies are often attributed to "C. Kopprasch". These etudes have also been transcribed for other brass instruments, such as tuba

Tuba

The tuba is the largest and lowest-pitched brass instrument. Sound is produced by vibrating or "buzzing" the lips into a large cupped mouthpiece. It is one of the most recent additions to the modern symphony orchestra, first appearing in the mid-19th century, when it largely replaced the...

 and trombone

Trombone

The trombone is a musical instrument in the brass family. Like all brass instruments, sound is produced when the player’s vibrating lips cause the air column inside the instrument to vibrate...

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