I used to be a VERY big fan of MediaCenter given its abilities to manage classical music until it started to become very unstable.
Yes, I am managing a bigger collection of classical music with MediaCenter. Meaning, I am also leveraging custom fields, sometimes using French accents (é, è, ê) or German Umlaute (ä, ü, ö) but ...
Just marking/selecting a few movements to tag common fields like Album, Composer, Opus is enough for MediaCenter to break.