I can edit the track details on the bottom of the now playing tab to show all the different tags, and it's set up the way I'd use it with pretty much everything. For compilation albums or soundtracks though, it shows "Various Artists" instead of the tracks actual artist. I don't know if the edit thing will actually use code, and if it does I don't exactly know how to use it.
Something like [If <Album Artist> is <Various Artists>, then display <Artist>, else display <Album Artist>]
You can see it says the artist is Bonnie Somerville in the upper right. The thought also occurred to me that I could have it display "Artist" all the time, but then I'd get the long chains of guest artists, and in the case of my slightly oddly tagged classical, it would no longer show the album artist as Beethoven, and instead display whatever orchestra.