Had this on vinyl at new release and it has always been a favorite of mine. And it has aged well over 5 decades. It’s an early ‘70’s concept album that was rather experimental among peers for the era. This was a studio performance just prior to Stevie Nicks and Lindsay Buckingham joining the group. Christine McVie is part of the group- but she’s not the featured singer. This is the guys. Extremely mellow and chill, this is one we always played end to end side 1 to 2 for full enjoyment. I particularly think the vinyl enhanced that trippy, floating “Left to Right” isolated channel special effect so popular in the early ‘70’s. Mystery to Me is often a mystery find in the Fleetwood Mac catalog. Enjoy it. Part of their full Evolution.