Friedrich August Belcke was a celebrated trombonist

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...

 in Berlin

Berlin

Berlin is the capital city of Germany and is one of the 16 states of Germany. With a population of 3.45 million people, Berlin is Germany's largest city. It is the second most populous city proper and the seventh most populous urban area in the European Union...

 in the 19th century.

In 1815, after two solos with the Leipzig Gewandhaus Orchestra

Leipzig Gewandhaus Orchestra

The Leipzig Gewandhaus Orchestra is one of the the oldest symphony orchestras in the world...

, Belcke had a 30-year career as a trombone soloist.

In 1819 a critic admired a concert given by Belcke in Leipzig

Leipzig

Leipzig Leipzig has always been a trade city, situated during the time of the Holy Roman Empire at the intersection of the Via Regia and Via Imperii, two important trade routes. At one time, Leipzig was one of the major European centres of learning and culture in fields such as music and publishing...

 for its
"clarity and precision, distinctness and pleasing sound, plus something truly noble in the imposing trombonistic figurations, as well as astonishing skill in that which is not idiomatic to the instrument - for example, rapid passages, cantabile, trills, etc." [1]

The other well-known trombonist of his time was Carl Traugott Queisser.