Johann Nepomuk Hummel wrote his Concerto a Trombe Principale (Trumpet Concerto in E Major) for Viennese trumpet virtuoso and inventor of the keyed trumpet, Anton Weidinger (as had Joseph Haydn). It was written in December 1803 and performed on New Year's Day 1804 to mark Hummel's entrance into the court orchestra of Nikolaus II, Prince Esterházy as Haydn's successor. There are places, primarily in the second movement, where Weidinger is believed to have changed the music because of the execution of the instrument. It is unknown whether this was in agreement with Hummel.