http://youtu.be/nYg2FxJVN2c

1. Allegro con brio

Tempo: eighth note = 144

The first movement is in sonata form, but with an added orchestral exposition, a cadenza, and a coda. It has a main theme repeated many times, and there are several subordinate themes. The orchestral exposition changes keys many times, but the second exposition is mainly in G major. The development starts in E-flat major, then modulates to C minor, which ends with an octave glissando. The recapitulation is in C major.

There are three options for the cadenza to this movement, all of which vary in length and difficulty and all ending with trills. The coda is played by the orchestra alone. Average performances vary in length from sixteen to eighteen minutes