PERSON@1 -LRB- NUMBER@1 April NUMBER@2 -- NUMBER@3 July NUMBER@4 -RRB- was an MISC@1 orchestra and opera conductor , one of the most renowned 20th-century conductors .

PERSON@1 -LRB- born LOCATION@1 , LOCATION@2 , NUMBER@1 April NUMBER@2 ; died LOCATION@1 NUMBER@3 July NUMBER@4 -RRB- was an MISC@1 conductor .
