The body will stay where it is, in the dark. The tunnel will keep its secret for now. More importantly, to remove the body would undo, to erase, an important part of their story. Whatever caused their demise is in the past and what we do now will not affect that.
Analog interface drift. I was told that with each analog/manual interface, a small amount of drift or irregularity is introduced. This is a favorable outcome that heightens the appreciation of the music experience.