If you pay close attention to the vinyl world, you know the name of Kevin Gray. He’s been mastering recordings since the early 1970s, and his name is on some of the best-sounding reissues being released, including albums by Blue Note jazz artists, Aretha Franklin, T-Rex, the Kinks, John Prine and a much-sought-after version of Pink Floyd’s The Dark Side of the Moon. What distinguishes his work from other mastering engineers, such as previous Caropop guest Bernie Grundman? Does a great master require an all-analog source? What does he think of half-speed mastering? How long does he take to master an album? Does he share Grundman's appreciation for CDs? Does he agree with Grundman that recordings on quarter-inch tape sound better than those on half-inch tape? We’re digging deep, so listen, learn and enjoy.