In December 1939, Rachmaninoff began an extensive recording period which lasted until February 1942 and included his Piano Concerto Nos. 1 and 3 and Symphony No. 3 at the Philadelphia Academy of Music. In the early 1940s, Rachmaninoff was approached by the makers of the British film "Dangerous Moonlight" to write a short concerto-like piece for use in the film, but he declined. The job went to Richard Addinsell and the orchestrator Roy Douglas, who came up with the "Warsaw Concerto".