following the opening flourish, the movement follows beethoven's three-theme sonata structure for a concerto. the orchestral exposition is a two-theme sonata exposition, but the second exposition with the piano introduces a triumphant, virtuosic third theme that belongs solely to the solo instrument, a trademark of beethoven's concertos. the coda elaborates upon the open-ended first theme, building in intensity before finishing in a final climactic arrival at the tonic e major.