Brubeck's 'Time Out' listeners

Have you identified the low note background "noise" heard at 0:56?

Mprime,

I have the "Time Out" LP - Columbia CJ 40585 "digitally remastered directly from the original analog tapes". I listened as carefully as I could to the 2:37 --> 4:20 section. Yes, there is something that I can hear from the right-of-center position during the drums solo. I 1st thought that it was Wright playing the bass until you started this thread!
Sounds to me that the drum solo is the key piece & that Wright might not be playing the bass during the drum solo?? Hard to say but I agree that something is going on in that right-of-center position.
I talked to a friend who is more in Jazz than I am + is a Jazz/Classical guitarist. His opinion is that this Quartet is of very high caliber & that tape splicing was not done during the times this music was recorded for such a high caliber group.

Bomb,

Thanks for the thoughtful listen. When one thinks about the size of a Bass, it is a hell of a reflector! This is what I think we're hearing, and while it's a minor effect, I find it amazing our playback systems can pick it up.

Take care,