What is the diff. in AVEX TRAX and AVEX TUNE?

[Zeke.]

I recently obtained a TON of m.o.v.e files (PVs, albums, singles...) and I was watching some CMs and at the end it says "AVEX TUNE" not "AVEX TRAX"! I know there is an "AVEX MODE" or something that I think is AVEX's release of anime music and would that mean that "AVEX TUNE" is the release of videogame based music? I know that m.o.v.e has done a lot of music for INITIAL D so I was thinking... Well, anyways, what is the difference? I mean, their PVs are pretty bland and boring (or at least the older ones; that is all I have seen) so is it like a lower-budget AVEX? Ha ha, well please explain!