Have no fear - the boys are not discussing just any four quartets. No, there's a couple of matching sets. An influential album from a certain "European Quartet" confronts its doppelganger from fifty years later; a recent leader date from a guitarist known for his electric work faces off with a work of his youth dating back forty-five years. And if that's not exciting enough, Pat leads Mike into the dark alleyway of Beach Boy bootlegs. Branford Marsalis – BELONGING; Keith Jarrett – BELONGING; Nels Cline, et al – QUARTET MUSIC; Nels Cline – CONSENTRIK QUARTET.