Various systems have different conventions for listing albums based on Artist or Album Artist: Apple uses Album Artist, Meridian and Burmester use Artist.

Ripped and downloaded content comes with different metadata, some have Artist only, some have Album Artist only, some have both, either the same or different.

The only way to handle this mess is to force them to be the same. (Some albums have a list of contributing artists listed under Artist, separated by commas, but none of my systems parse such a list; Meridian does keep contributing artists in its database, but it downloads it from metadata sources.)

Is there any automated capability to make this change across many albums? Copy Album Artist to Artist?

Or better yet, "if one of the two is filled in and the other is blank, copy the existing one to the blank; if both exist, copy Album Artist to Artist; if both are blank, give me an error list."