19, by Ludwig van Beethoven was composed primarily between 1787 and 1789, although it did not attain the form in which it was published until 1795.

It was used by the composer as a vehicle for his own performances as a young virtuoso, initially intended with the Bonn Hofkapelle.

[3] The B-flat major Piano Concerto was an important display piece for the young Beethoven as he sought to establish himself after moving from Bonn to Vienna.

He may have premiered it on 29 March 1795, at Vienna's Burgtheater in a concert marking his public debut.

[2] Beethoven himself apparently did not rate this work particularly highly, remarking to the publisher Franz Anton Hoffmeister that, along with the Piano Concerto No.

The development wanders in key and ends on a long B-flat major scale.

This movement takes the form of a rondo (ABACABA) and showcases Beethoven's playfulness of his early period.

The C section is also highly contrasting with the others, in a minor key and intensifying the syncopation of the main theme's sforzandi.

Prior to the last appearance of the rondo theme, Beethoven brings the piano in the "wrong" key of G major, and with the theme displaced early by one beat with respect to the barline, before the orchestra "discovers" the discrepancy and returns to the correct tonic key and metric alignment.