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

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.

It gives vinyl its euphony. 

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.  

Yep, Koln Concert is rife with the pre-echo.  I used to think it was all the wax master issue noted above, then I bought some favorite recordings as DSD files from High Definition Tape Transfers, and damned if the echo wasn't still there.  Tape print-through.

One of the more famous of 'tape bleed through' cases is the 30 inch per second tape lead in on a certain Led Zeppelin album.