Well, that goes on the short list…
The first time I listened to the sample track I thought I heard an overdub of Coltrane’s saxophone (and wondered, was that Coltrane’s doing? And/or Bob Thiele’s?). Now that I’ve gone back and listened 2 or 3 times I don’t hear it. Either I imagined it, or I inadvertently started the track in a second window. But if it was the latter, it was synced perfectly.