Original sentence: Meanwhile in Chicago Curtis Mayfield was creating the 'Sweet soul' sound that would render him the undisputed Godfather of Northern soul, although once again the 'forerunner theory' suggests his music was heavily influenced by Sam Cooke
Edited sentence: Meanwhile in Chicago Curtis Mayfield was creating the 'Sweet soul' sound that would render him the undisputed Godfather of Northern soul, although once again the 'forerunner theory' suggests his music was heavily influenced by Sam Cooke who is widely regarded to be the creator and king of soul in Chigaco