Identification of (Primary) Artists from unidentified albums (?)

[BrianW (Brian)]

A known problem/feature/restriction

Adding Artist Unknown that Has to be Known (Sheryl Crow)

We need a single piece of identified music, then the right person will exist in your library and show up in that list for you to select. It could be an album, or a track on a compilation, a credit, etc, but we need something in your library to match a person before we start attaching unidentified content to a known person.

Find an identified album with Otmar Suitnar, add it to your library, and you will get the metadata. (You may have to delete/merge your current blank Otmar artist though as depending on how you do it, you may end up with two such artists))