Early Faint "Phantom" Turntable/Vinyl Signal???

Yah, I've heard it before, but never knew what it was.  Last time I had a decent vinyl set up was in the early 2000s (TNT/Grasshopper/Audible Illusions) and remember it, but the rich vibrant knowledge base which is the internet was nascent at that time and it never occurred to me to look into the phenomenon.  If it's normal, I'm cool with that.  But what causes it?

Appearing from the ether comes an explanation:

"I think what your are hearing is print through either from the original tape recordings or from the records themselves. It is like one revolution of the record difference between the faint and the full level? Sometimes it is one revolution of the reel of tape used to make the record. This phenomenon is actually on the record."

Actually Keith Herron supplied the explanation.

Thanks guys.  Love the knowledge base here.  I was listening to Keith Jarrett's Koln Concert and the passages are so quiet with so much space between notes, the effect was very obvious.