Heinrich Baermann
Heinrich Baermann (1784-1847) was a German composer and prominent clarinet virtuoso of his time.
He was also a key figure in promoting the popularity of the clarinet in the nineteenth century. Many of Carl Maria von Webers most popular works were written for Baermann.
This website includes piano accompaniment for Baermanns Adagio, which was originally a movement from his clarinet quintet, Op.25. A link can be found below.