[mb-style] Composition/Performer/Production ARs at Release or Track level?

[Olivier]

As mentioned earlier in the thread, the producer AR just can't suffer
this automatic devolving.
I also have some doubts about the composer AR as well (again, as
described earlier in the thread).

As said, AR on different levels can have different meanings, and
neither a release is just a set of tracks, or a "fuzzy" AR container.
There are producer (or composer) AR on the release level with a
*non-fuzzy*, *exact* meaning at the release level, that would not be
correct if added to all tracks.

So, if such an automatic process would apply/work, the only "safe" AR
for now is performer.
And for these, I would rather have to do them manually (good occasion
to verify the data) than having a script do it.

Regards,

- Olivier