Mr. Cohen has long had a reputation for astonishing his audiences with the musica authroity and blistering virtuosity of his performance. Program: Ludwig van Beethoven: Sonata in B-flat Major, Op. 22; Sonata in A-flat Major, Op. 110 of Ludwig van Beethoven and Frederic Chopin’s Four Scherzi. Visit link above for ticket purchase information or call Box Office 503.228.1388. At Newmark Theatre, 1111 SW Broadway, Portland, 97205.