I haven’t read through the entire thread, so maybe you’ve already mentioned these;
1) "Encore" by Brain Auger and Julie Tippets has been re-released by Esoteric.
https://atthebarrier.com/2023/06/12/brian-auger-and-julie-tippetts-encore/
2) "Highway Butterfly: The Songs of Neil Casal" is a 3 CD tribute set
https://nealcasalmusicfoundation.org/highway-butterfly