Trumpet Concerto-Hummel's trumpet concerto was written in 1803 for the Viennese trumpet virtuoso Anton Weidinger (1767-1852) who had developed a fully chromatic keyed trumpet. The concerto was originally written in the Key of E butis nowadays more often played in E flat so it can be comfortably performed on both B flat and E flat trumpets. This edition in E flat has parts for B flat and E flat trumpets.