Beethoven’s finale is a straightforward rondo where the first subject returns and returns again.
Beethoven: Piano Sonata in C minor, Op. 13, third movement
Schubert one-ups Beethoven with a sonata-rondo movement. Frannie liked to use remote keys, and here there are two dips into B Major when he abruptly stops the action. On the surface this is a tarantella using Beethoven’s thematic material from his finale, but underneath the surface it’s a horseback ride to hell. Schubert was adept at musical descriptions of the various gaits of a horse, and this is a full tilt gallop. Note the chord change from the second movement showing up. Note the constant crossovers, which make this an extremely difficult piece. Some of the left-over-right crossovers use harmonies that would not be heard again until 70 years later with Debussy. At the end, there is a slide down the chute, and the gates of hell slam shut. Depending on how long the pianist holds the last chord, you can tell if the gates are made of wood or steel.
B Major...Eek.
Tough on the Piano.
Worse on the Guitar.
Not so bad on Bass...just put your hand in the right position and play.