During his final years Falla was composing a very large work called "Atlántida". It was a long oratorio for soloists, chorus and orchestra. The words were in Catalan. Falla did not live long enough to finish the work. He became very depressed because of World War II. In the end he was invited to Argentina where he settled. He continued to work at "Atlántida", but he had not finished it when he died. A man called Ernesto Halffter spent many years trying to finish it and prepare it for a performance. It was performed on stage at La Scala, Milan, in 1962, but it does not work well as an opera. Occasionally it is performed as a concert piece.