Erroll Garner, The Most Happy Piano: The 1956 Studio Sessions (American Jazz Classics, two CDs). If, like me, you adore Garner’s unselfconsciously joyous art, make haste to order this imported double album containing all twenty-nine of the long-unavailable trio sides that he cut for Columbia in 1956, including a show-stopping eight-minute-long version of “The Man I Love.” The title is on the nose: no jazz musician, not even Louis Armstrong or Fats Waller, has ever made more purely happy music (TT).