Answer:
The swing era is generally defined as the decade from 1935 to 1945, although swing music examples can be found in the early 1930s. The rise and decline of swing music seems to coincide with the Depression and World War II through music that helped lift the nation's spirits during these challenging times.
Any type can be played on piano but specifically rag time. Famous ragtime songs played on piano are the maple leaf rag and the entertainer. The emphasis for rag is on piano.
I drew leaf and it was from my house.