I noticed something rather odd, but very interesting to me a few days ago. Now, after understanding a bit more of what it is, I wonder, has anyone else noticed it?
I noticed that on certain tracks, whether Studio Acapellas, or Master MultiTrack Tracks, there is a echo that slowly get louder, or faster, or both.
I noticed it first on Bohemian Rhapsody's Master Multi. When I amplified the guitar in certain places.
I also noticed it in Studio Acapellas made from master multitracks. Such as You're The Inspiration by Chicago.
To describe it, I'd say it was a timing playback that was 'silenced' before the final versions of the song, but is there the make intros on-beat perfectly. I don't know how it works quite yet...
It's pre-echo caused by print through. When the tape is on the reel it's squashed together so audio that's recorded on one part will bleed through to the other parts of the tape which are sandwiched on top of/below that part.