Kudos to anybody that can pull this off for the BBs, especially if we're talking their entire career.
With the Beatles, while there is a ton of great research and reference work still being done, it's undeniably an easier task to catalog the track-by-track contents. It is (almost) entirely in one location, Lewisohn, Barrett, Winn, and others have done a lot of that groundwork, and there are enough latter-day remixes (pre-AI isolations) to help further deduce a lot of what could be on each track. And it spans 7-8 years.
The BBs are obviously a whole other ball of wax.
I'd love for there to actually be a day when we could know what's on the 24 or 48-track tape, and who played what, for like "Chasin' the Sky" or "East Meets West", etc.
Yes, yes, I know, many more folks are interested in the 60s stuff, and 70s, more so than like prying apart the ProTools files for "Summer in Paradise."
I find all of this stuff intensely interesting, though I guess wouldn't rank as my #1 wish specifically a break down of what's on which track of the multi-track tape. I think who played what, in what order, and how the recordings were made (and just *cataloging* all of those recordings in general) is more useful and interesting than specifically knowing that, like, vocals went on Track 7 instead of Track 8. Obviously, all of this info goes hand in hand, and knowing what's on each track is of course less about knowing which track *number* a thing is on the multitrack, and more knowing which groupings of which instruments and vocals have their own track on those multitracks, which helps indicate recording method, order, etc.
Yeah, the exact order of the tracks, while nice to know, isn't the important part of a list like this. It's more about what was together on each track, like you said. Also what particular instruments were used and by whom, as well as the order of the overdubs / punch-ins. Finding reliable sources for all of that is tricky because sources tend to contradict each other sometimes or are just plain incorrect. My goal is to set the record straight and attempt to figure out the truth. I hope this new BBs project does the same thing.