Just to follow up on this, it's a complete mess. The particles I create of songs constantly lose their information and end up changing their metadata back to the original song they were created from.
Case in point: I tried to set up the UK version of 'The Clash,' which has a different track listing and a few different songs than the US version. So I have two versions of the album, The Clash(US) and The Clash(UK).
For the redundant tracks, I created particles from the US version(with -Particle in the track name), then changed the album name to 'The Clash UK' and modified track number. Everything seems to work great and I set up both albums. They play fine. I checked back some hours later and all the particles have reverted back to the US version of the album, and have renamed the tracks to eliminate '-Particle' so they are indistinguishable from the original track.
I really would like this to work, because I have quite a few artists, like Johnny Cash, that have the same songs on multiple albums. Not to mention Greatest Hits collections.