Discovering Music - Stravinsky's Petrushka

Stephen Johnson is joined by the BBC National Orchestra of Wales to delve into the world of one of Igor Stravinsky's most iconic works - his music for the ballet "Petrushka", exploring the lesser-known original version of the work which Stravinsky wrote in 1911. By looking at the changes that Stravinsky made in his more famous 1947 revision, can we learn much about the composer?