MC's online cover art database uses the "Album Artist (auto)" and "Album" fied values as identifiers.
With typical pop music that works pretty well, but as said, classical is a different beast.
Here's a good example. I just ripped this 3-disc album:
Amazon linkand noticed that the Artist and Album tags that I got from YADB are varied:
Disc 1Album Artist (auto):
(Multiple Artists) - someone has submitted the following artists: Arie (4 tracks), Chor (1 track), Choral (5 tracks) and Rezitativ (18 tracks)Album:
Herbert Von Karajan / Matthäus-Passion (J. S. Bach) Disc 1Disc 2Album Artist (auto):
Johann Sebastian BachAlbum:
Matthäus-Passion (CD 2) - Berliner Philharmoniker - Herbert Von KarajanDisc 3Album Artist (auto):
Johann Sebastian BachAlbum:
Matthäus-Passion (Herbert Von Karajan - Berliner Philarmoniker) Disc 3 of 3I prefer to have the discs as a single album and use the disc number field so I tagged all discs as:
Album Artist (auto):
BachAlbum:
Matthäus-Passion BWV 244 (Karajan)Here are some possible variations:
J.S. Bach
Matthäus-Passion BWV 244 (Karajan/Berlin Philharmoniker)
Bach - Karajan / Berlin Philharmoniker
Matthäus-Passion
Johan Sebastian Bach
Matthäus-Passion BWV 244 (Herbert von Karajan)
Bach/Karajan/BPO
Matthäus-Passion BWV 244
Herbert von Karajan & Berlin Philharmoniker
J.S. Bach: Matthäus-Passion
Bach
St. Matthew Passion (Karajan)
J. S. Bach
St. Matthew Passion BWV 244 (Karajan/BPO)
Bach (Karajan & Berlin Philharmonic Orchestra)
St. Matthew Passion
Johan Sebastian Bach
St. Matthew Passion BWV 244 (Herbert von Karajan and Berlin Philharmonic Orchestra)
Bach/Karajan/BPO
St. Matthew Passion BWV 244
Herbert von Karajan - Berlin Philharmonic Orchestra
J.S. Bach - St. Matthew Passion
And so on... Add the disc numbers in the album names in few a different ways and you get a huge number of quite possible variations.