Pianist Stephen Kovacevich Pianist Stephen Kovacevich (koh-vah-SAY-vitch) performs the Piano Sonata No. 31 by Ludwig van Beethoven in concert during this past summer''s Aspen Music Festival in Colorado. (Aspen Recording Institute)
NPR logo Pianist Stephen Kovacevich

Pianist Stephen Kovacevich

Pianist Stephen Kovacevich

Audio will be available later today.

Pianist Stephen Kovacevich (koh-vah-SAY-vitch) performs the Piano Sonata No. 31 by Ludwig van Beethoven in concert during this past summer''s Aspen Music Festival in Colorado. (Aspen Recording Institute)