Simplify the following text for a Grade 10 native English-speaking person.
Original: Sir ( Herbert ) Hamilton Harty ( 4 December 1879 -- 19 February 1941 ) was an Irish and British composer , conductor , pianist and organist .
Simplified: Sir Hamilton Harty ( born Hillsborough , Co. . Down , Ireland , 4 December 1879 ; died Brighton , 19 February 1941 ) was an Irish composer , conductor and accompanist .