brio This movement is in the concerto variant of sonata form (double-exposition sonata form). The orchestra introduces the main theme and the subordinate theme in its exposition. The second exposition is in F major. The development wanders in key and ends on a long B-flat major scale. The recapitulation is similar to the exposition and is in B-flat major. There is a rather difficult cadenza composed by Beethoven himself, albeit much later than the concerto itself. Stylistically, the cadenza is very different from the concerto, but it makes use of the first opening theme. Beethoven applies this melody to the cadenza in several different ways, changing its character each time and displaying the innumerable ways that a musical theme can be used and felt. This movement was written between 1787 and 1789 in Bonn. Average performances last from thirteen to fourteen minutes. II. Adagio This movement is in E-flat major, the subdominant key. Like many slow movements, it has ABA (ternary) form, where the opening section introduces the themes, and the middle section develops them. This movement was written between 1787 and 1789 in Bonn. Average performances last from eight to nine minutes. III. Rondo, Molto allegro This movement takes the form of a Rondo (ABACABA). Beethoven's playfulness of his early period can be heard here. There is a constant angular feel within the 6/8 melody itself that Beethoven plays on with each return of the rondo theme. The C section is also highly contrasting with the others, being that it is in a minor key and more forceful and stern in meaning. Also, prior to the last appearance of the rondo theme, Beethoven brings the piano in in the "wrong" key of G major, before the orchestra "discovers" the discrepancy and returns to the correct tonic key. This musical joke can be seen in many of Beethoven's subsequent compositions. This rondo is the one that Beethoven wrote in 1795 and premiered in Vienna that year. It does show Haydn's influence, particularly in usage of sonata rondo form. Average performances last from five to six minutes. References Notes Sources External links 02 1795 compositions Compositions in B-flat major