No, I don't know if that is the reason... I know that they probably synced it to the 24fps one, but at this point (since I converted the audio to match a 29fps stream, making it the same pitch and tempo as the original recording) unless there's a problem with the video being 29fps I think I'm inclined to leave it that way...
Also, I totally blanked on the original Deems Taylor audio. That was ripped from an LD. Why it would be ripped from a VHS is beyond me... :)
I don't think I'm going to do noise reduction at all, but possibly... What is the general consensus on that?