Sound blead through on LP

In my experience in recording studios...even in the late 60's...there was very rarely any audible "bleed through" on those pro machines using 2 inch tapes and whatever else we had..

I'd actually always heard it was from the original lacquer cutting process. On a loud passage the cutter head would have more modulation and this would actually deform the adjacent/previously cut groove from the prior rotation. Sine the dead wax is theoretically dead quiet, the dynamic contrast from the start of the track often makes it's presence known. It's not heard at the end of a track because the next groove hasn't yet been cut and therefore can not be deformed.

I also understand that part of the job of cutting engineer is to actually vary the groove spacing so that really dynamic passages are given more "shoulder" between each groove so that this distortion of a groove cut on the last rotation is minimized on the next.

Thanks, I wasn't sure if adjusting the cartridge to track more the outside of the groove vs the inside would affect this.

A well know example of master tape bleed through is on Whole Lotta Love, Led Zeppelin

Yeah analog has some serious issues. This problem is easily audible between tracs but the fact is that "bleed" occurs all the time - right through an entire album (or analog tape).

Although, to be fair digital, has its share of issues too.

I think it's called "Pre-Echo" and is indeed a part of vinyl playback.

This is one of the few things inherent of vinyl, it's normal.

your fine, this is a natural affect of vinyl play.