Voted 9 on this (only because I think
What's Going On is superior musically) but you're absolutely right, it puts both the 5.1 (5.0?) SACD and the tracks from this album on the
Forever Yours DTS CD to shame by comparison. I also feel that, like any good quad mix, it makes the stereo version of this album entirely obsolete - why would I go back to the stereo mix after a listen this engaging?
It's also interesting to note that this album (and all the Motown quads) seem to be mixed according to matrix quad rules - there elements in the rears seem to be mixed to either hard rear-left or hard-rear right, and there's never anything simultaneously in all 4 speakers at once. I'm sure I've said this elsewhere, but the Motown quads are a bit of a mystery - with the exception of The Temptations'
1990 album, they all date from 1973 or earlier, but they weren't released in Japan until between the very end of 1974 and mid-1975. It suggests that maybe Motown were stockpiling quad releases in the early '70s with the intention of releasing them Stateside on either SQ or QS-encoded vinyl, but for whatever reason they never did (maybe the two Q8s they did release in the US, live albums by Marvin Gaye and Diana Ross didn't meet their sales expectations) and then eventually dumped them out in Japan to at least recoup some of their investment in the mixes - or perhaps JVC put some money in their pocket to let them issue the mixes as CD-4s.
I'd also love to know who did these mixes, given how accomplished they are - so much of the magic in what makes Motown albums sound like Motown albums is production trickery, and while (as
@Clement noted) these aren't identical to the stereo mixes, there's certainly been a lot of care taken so that they maintain the vibe of their stereo counterparts. In an
interview a few years back Baker Bigsby mentioned that he'd done a bunch of unreleased Stevie Wonder quad mixes - maybe he (or someone else at the Village Recorder) did this mix as well?
Also, given how great this is, it's absolutely criminal that UMG has never reissued this mix (or any of the Motown quad mixes) on any modern multichannel format. They've done stereo fold-downs (Diana Ross
Last Time I Saw Him on the 2008 deluxe CD reissue, and the J5
Greatest Hits on vinyl last year), and released no less than three different unique vintage stereo mixes of
What's Going On, but never anything more than that. You'd think that one of these barrel-scraping exercises would eventually encompass a multichannel reissue, just by virtue of the "a stopped clock is still right twice a day" principle. Maybe one day.