Original sentence: John Edward Roache (July 19, 1940 – March 3, 1999) was an American pianist, and prolific MIDI sequencer, exponent and composer of Ragtime; notable for his involvement with and contribution to the international "Ragtime Ring"1 and eminent, affiliated Swedish Ragtime Society2 (which houses a number of Roache's creations and a posthumous biography pertaining to him3, alongside works by a number of contemporary ragtime composers)
Edited sentence: John Edward Roache (July 19, 1940 – March 3, 1999) was an accomplished pianist, and prolific MIDI sequencer, exponent and composer of Ragtime; notable for his involvement with and contribution to the international "Ragtime Ring"1 and eminent, affiliated Swedish Ragtime Society2 (which houses a number of Roache's creations and a posthumous biography pertaining to him3, alongside works by a number of contemporary ragtime composers)