Audio Fidelity Bliss. A great track and a bouncing opener, but goddamn the engineers were gods on this record, and specifically this track. My guess is this was recorded with a single mic with the reverse left/right. even in digital and YouTube you can hear the monster soundstage and depth. Just listen the the muted trumpets at :19 and the snare at :35 and you'll get a taste for what I'm on about. On my high-end system, I'd play this for people who never heard it and some who didn't even like swing or Connick and they'd get goosebumps 60 seconds in. Go to Apple Music and hear it at 320 to get a little closer to the magic.