themes that are then developed in the middle B section. Typical performances last more than ten minutes III. Rondo. Allegro scherzando The third movement is a seven-part sonata rondo (ABACABA), a traditional third-movement form in classical concerti. The piano states the main theme, which is then repeated by the orchestra. The two B sections (subordinate themes) are in G major and C major respectively. The middle section is in A minor. Two short cadenzas are indicated by Beethoven in this movement, one just before the final return to the main theme, and another one immediately before the end of the movement, which finishes with a striking dynamic contrast; the piano plays a melody quietly, but the orchestra then ends the movement forcefully. The movement typically lasts around eight to nine minutes. Alternative cadenzas German pianist Wilhelm Kempff wrote his own cadenzas for both the first and last movements and played these in his various recordings of the work. Canadian pianist Glenn Gould also wrote his own cadenza, which was published by Barger and Barclay, and recorded for EMI in 1996 by Lars Vogt with the City of Birmingham Symphony Orchestra under Simon Rattle Recordings References Notes Sources External links Sheet music, Musopen 01 1797 compositions Compositions in C major Music dedicated to students or teachers