When I talk about analogue/digital here is really in the less specific
context of continuous and discrete data. This is going OT, and maybe I've
got it wrapped around my head the wrong way, so I reserve the right to be
wrong...

For me anything that is discrete may be said to be digital, since it may be
expressed as a number (in any radix, as binary if it helps). Whereas for
anything which is continuous, any value, possibly between extremes, I think
of as analogue. A continuous value is almost certainly an irrational
number, and so can not be expressed numerically without approximation. It
is not to the nearest anything, but it will always contain errors. You can,
however, say the accuracy to which you can measure the analogue thing with
reasonable precision.

When I talk about things being atomic/axiomic I didn't always mean atoms
(although in one case I did) I was mostly referring to the smallest
possible unit of sound for music storage, for cds this is the 32 bits that
are played at any one time. For vinyl it is less clear what the smallest
possible unit is, because for most day to day purposes we consider solid
objects to be continuums, so I suggested vinyl atoms as a side point.

Accuracy and precision are similar ideas, degree of approximation. Very
simply accuracy is 'to the nearest x' whilst precision is the presence of
errors.

Btw, I tend to prefer digital music, this was not a 'vinyl is better',
analogue is perfect thread.

--
Jim H
remember, I reserve the right to be wrong.