Years in album.nfo

Question about how album.nfo files work:

What happens if the .nfo file for an album lists a year that is different than the tags in the individual song files? Would Kodi prefer the .nfo value when sorting albums by year? How would smart playlists based on year be affected?

My files are ALAC, which I believe only support the standard “year” tags. So for the benefit of my smart playlists, I have stuck to tagging individual songs by year, rather than going by album release year. This works out well when I want to hear music from the ’90s, without having stuff from the Forrest Gump soundtrack show up. But I’d love it if Kodi could actually treat that album like it was released in 1994, for the purposes of album sorting, or displaying the year next to the album title in music visualizations.

So while a typical “now playing” screen currently looks like this:

Elvis Presley
Forrest Gump [1956]
1. Hound Dog

I’d prefer it to display the year as 1994 (possibly via .nfo file?), while that specific song could still show up on an “oldies” smart playlist with songs from the ’50s.

Could I accomplish this through clever manipulation of album.nfo files? Or is it just a limitation of my chosen file format that I’ll have to live with?