A bit of info on Chandler from this site: “Gene Chandler’s association with his first and biggest hit, the perennial oldies-station favorite “Duke of Earl”, tends to overshadow a long and fruitful career as a consistently effective Chicago pop/soul stylist. Chandler’s instantly recognizable, anguished tenor, polished by his years in doo-wop with the Dukays, proved to be a perfect vehicle for the urbane love songs of Chicago’s greatest pop/soul composer, Curtis Mayfield. Chandler, Mayfield, and producer Carl Davis collaborated on a string of hits for the Constellation label in the mid 1960s.”