I tried searching through the board and couldn't find any info on this, so I'll raise it as a new question. I know that MC has the Album Artist field which means that, for a compilation album, I can have the artist field represent the individual artist for a particular song while album artist remains "Multiple" or "Various". But is there a similar functionality for dates? If I have a Greatest Hits album that came out in 1999, but is full of songs that were originally released in the 70s, what is the best way to distinguish this fact when creating smartlists? What I have been doing is to add 70s as a keyword and then in creating a 70s smartlist I have it filter on either keyword 70s or date 1970-1979. But by this logic, the songs from this album will show up in both the 70s smartlist AND the 90s smartlist (because my 90s smartlist is configured similarly). I'd prefer not to have to enter info in the keyword field for all albums, just for those where there is a discrepency between the album release date and the song release dates. Any advice?