Par HADLEY J.CASTILLE. Learn from a Cajun Fiddle Master himself, Hadley J. Castille, as he explains your favorite Cajun Songs!! Hadley J. Castille is one of the finest exponents of authentic South Louisiana Cajun fiddle music. Ever since his epiphany during a tour of Canada in the early 80s, Hadley J. Castille has represented a rare side of Cajun music history. While most practitioners follow the …