I was an early adopter of
Conceiva Mezzmo, some 16 years ago, after my music library conversion to 'digital' (via dBPowerAmp).
Sometime later, after I had allowed Mezzmo to "index" my library, I found out that it was automatically (and systematically) replacing all the associated CD/LP art, ID-tags, *.cue and *.mpu for each folder.
It had practically destroyed my own simple
Dewey Decimal System (DDS) on my NAS:
...my library became my own Dewey Decimal System (DDS) on a NAS.
..... BandName-AlbumName[Year] ...
[LastNameFirst, In/DefinitiveArticlesLast, Before-AlbumName]
It is said to be
more convenient to let a computer/software "index" your content.
YMMV but personally, I am NOT a fan of indexing:
It only seems applicable to those who want an agent to do their housekeeping/maintenance of their data as well as their own music library.