I've been wrestling with the same issue. I have a huge music library (4 hard drives) and have adopted a very specific tagging standard to keep everything organized. I have been using a similar tagging system, but I use [xxx] instead of parentheses to denote remixes only because parentheses are already used for Song Title clarifications. So, in order to distinguish between song clarifications and remixes I adopted this standard (I also found many others using this standard back in the MusicMatch days).
Here are some actual song title examples:
Me Gustas (No Me Disgustas)..........Song Clarification Tag
Vai Minha Tristeza [Jazzy Vocal Mix]..........Remix Tag
Eugina (Sargasso Sea) [I Want to Be Free Vocal Mix]..........Both Remix and Clarification
The problem I am having now is where to list the overall album compiling or mixing artist, such as in this example:
This CD is a compilation with various artists but mixed by Claude Challe. So let's choose one song tag:
Album: Happiness (1 of 2)
Track Title: Sinnerman [Felix da Housecat's Heavenly House Mix]
Album Artist: Various
That works perfectly for me but where to place the mixing artist?
I know some have proposed listing it under "Album Artist", but I rather keep that "Various". Instead of just "Various", I did think of listing as "Various - Claude Challe" or "Various - Mix by Claude Challe", but that does get a bit wordy though. Would be nice to get a "Album Mix Artist" or "Alternate Album Artist" field added to MediaMonkey, especially since I have already used all my "Custom" fields.
Sorry for the lengthy post, but I would love some feedback/input on this.