Nancy Sinatra and Lee Hazlewood’s duet captures the languid, orchestral sophistication of mid-1960s pop on Reprise Records. “Summer Wine” unfolds with lush strings and breathy vocals trading verses over a hypnotic minor-key progression—a template for baroque pop that influenced everything from torch ballads to contemporary art-pop. Hazlewood’s gravelly baritone against Sinatra’s breathy alto creates an almost cinematic tension, proving the label’s knack for pairing unlikely voices into something genuinely seductive.