I understand that it is low priority, but thought I’d post a separate feature request in case other user are also wanting this.
For me, albums all have the same “DATE”, but for a few albums that are compilations of many albums, the “ORIGINALDATE” varies on a song-by-song basis. The current behaviour is to pick one song’s original date tag as representative of the entire album. This leads to songs in boxsets or compilations to be displayed under the wrong year in the library.
In boxsets or compilations where songs are from a span of many years, it allows people to browse / search their library by year more fine-grained than on a per-album basis. It is also a little confusing when Symfonium chooses one year as representative of an entire album that spans over many years.