Complex sentence: John Jackson (February 24,1924--January 20,2002) was an American Piedmont blues musician; his music did not become primary until his accidental "discovery" by the folklorist Chuck Perdue in the 1960s.
Split into simpler sentences: John Jackson (February 24,1924--January 20,2002) was an American Piedmont blues musician. His music did not become primary until his accidental "discovery" by the folklorist Chuck Perdue in the 1960s.