B.B. King and Eric Claption, “Come Rain or Come Shine”.
This song is a blues standard, but I think this particular rendition is the best. Two of the greatest guitarists of all time. Old B.B. all mellow voice and dulcet blues tones, Eric all raspy deep throat and twangy guitar pick.
The arrangement is beautiful, but what really gets me is where they shut up and just riff off each other in the middle – there’s nothing like hearing music played by the best in the business.