PERSON@1 -LRB- -RRB- -LRB- NUMBER@1 December NUMBER@2 NUMBER@3 September NUMBER@4 -RRB- was a MISC@1 composer of the later Romantic period whose music played an important role in the formation of the MISC@1 national identity .

PERSON@1 -LRB- born PERSON@2 -LRB- Tavastehus -RRB- NUMBER@1 December NUMBER@2 ; died PERSON@3 , NUMBER@3 September NUMBER@4 -RRB- was a MISC@1 composer .
