General music thread (I have questions about various releases, and want to annoy everyone here for answers)

So I was on Spotify the other day the Allman Brothers Band’s debut album was listed as having an alternative “beginnings” mix for each song. I can’t seek to find this version on CD anywhere, what is it? Apparently there’s a deluxe edition of Idlewile South containing the full Ludlow Garage concert, thus negating my need to buy the Ludlow Garage release if I get. Also, there’s a new deluxe release of Brothers ans Sisters with a full Winterland concert. I currently own Beginnings, so what’s this alternate release of the debut album with the "1973 Beginnings mixes? Obviously I can sell my copy of Beginnings if I get it and the deluxe Idlewile South, but I can’t figure out what the former is. I can’t seem to find any special edition CD release? I have the deluxe editions of At Filmore East and Eat a Peach, and the Dreams boxed set. Would there be anything new to me on the The Complete Filmore East Recordings?

Speaking of Duane Allman, what’s the difference between the deluxe, super deluxe, and sessions releases of Layla? Does one comprise them all? To ease my wallet?

Is there any way to get the third disc of the super-deluxe version of the Stones Sticky Fingers without getting the huge-ass set with the vinyl that I don’t need that costs like a week’s pay to get the Leeds concert?

Anyone have a fucking clue when Bob Dylan: The Complete Album Collection: Volume 2 comes out? I swear to God, the moment I buy all the damn Bootleg Series Albums, it’ll come out. Or when volume 2 of Springsteen’s albums comes out, for that matter?

I am disappointed at the lack of nerd knowledge for my answers 😉.

I’ve tried Google, but it’s not as useful as I hoped. Not to mention the versions of Deep Purple’s Made in Japan. This stuff is harder to keep track of than you’d think.