Due to its bright opening, the third movement of this piece is sometimes nicknamed "Dawn."
Much debate exists over whether to play the slurred octave glissandos in this piece's third movement prestissimo coda as separate notes or with an actual glissando. For the second theme, the first movement of this piano piece modulates not to the expected dominant but to E major, which has a chromatic mediant relationship to the tonic. The original second movement of this piece was later published separately under the title (*) Andante favori. Despite its name, the Introduzione movement of this piece is placed second. The first movement begins with repeated eighth-note pianissimo C major block chords in the left hand. Due to its bright opening, the third movement of this piece is sometimes nicknamed "Dawn." For 10 points, name this piano sonata by Beethoven dedicated to a certain Count of Vienna. 
Much debate exists over whether to play the slurred octave glissandos in this piece's third movement prestissimo coda as separate notes or with an actual glissando.
Piano Sonata no. 21 by Ludwig van Beethoven [or Waldstein Sonata or Opus 53; The words "Beethoven" and "piano sonata" are not required after they are read; accept "Dawn" Sonata before that word is read]