The piano's entrance resembles an "Eingang", an improvisatory passage from Mozart's day that would have occurred after the orchestra's last unresolved dominant chord, but before the piano played the main theme. Beethoven captures this improvisatory style by accelerating the rhythm in the piano part, from eighth notes, to triplets, to sixteenth notes, and finally in a scale that rushes downward in sixteenth-note sextuplets. A long preparation is then made before a tonic cadence duly arrives, and the orchestra once again takes up the main theme.