Today marks the 150th anniversary of the death of the great pianist Frederic Chopin (1810-1849). Daniel speaks to music critic Bob Greenberg about the life and legacy of this gifted musician. Greenberg says in many ways Chopin helped define the modern piano as we know it today. We hear excerpts from Etude Op. 10 No 4; Polonaise A major Op. 40 no. 1; Mazurka Ops. 17 A major: and the Etude No. 5 in G-flat major.