I don’t know about you guys, but I have a constant music soundtrack that runs through my head. Very often it’s tunes. But quite often it will be songs, mainly from the 40s, 50s and 60s. (Don’t know why that era, since it’s a bit before my time really, well, mostly before I was born, but there ya go.) It starts before I’ve even got up in the morning. Sometimes it will be something from when I was a teenager in the early 70s.
Well, yesterday’s selection, selected for me by my brain 
, was “Mississippi Moon” from Seatrain’s phenomenal 1971 album “Marblehead Messenger”. It’s fantastic. Richard Greene was one of my earliest influences as a fiddle player. Whenever I’m called on to improvise, which is quite often in my duo with my guitarist pal, it’s the inventive genius of Richard Greene’s playing that runs through my head.
I had to go and listen to the whole album again. There’s not a duff track. It’s brilliant stuff. I don’t think the cleverness of the composition, or the sheer brilliance of the playing (Richard Greene’s in particular) have been bettered, and the tracks hold up even today.
What have you guys/guyesses rediscovered from your youth and why’s it still good? 
Richard Greene is well worth re-discovery anytime. Loved him with Kweskin, Seatrain and all the collaborations with David Grisman (Muleskinner). I’m a newgrass kind of guy.
My children keep coming across music from my younger days - mostly classic rock but also folk and fusion stuff. It’s all brand new to them but re-discovery for me. The question always comes up, “How do you play this one?”. So I sit down swallow hard and dig back into the folds in my cerebellum to show them how to play them. The youngest returned from university this week. We listened to a lot of Yes and then we took an enigmatic voyage with some Jean Luc Ponty.
But personally I prefer to discover new music and new players. So they each bring lots of new music to the house for me to listen to.
It’s a long and winding road.
Feadoggie
Funny you should mention Yes. I also had the need to find and play “Astral Traveller” yesterday. Before your post, that is.
Thinking about Yes, and Richard Greene (and there were plenty more) how come pop music these days seems to be completely devoid of all that virtuosity that was around back then. Those were people who could really play. Now, the best we get is arrangements, and decent, but hardly scintillating, session musicians. And even they are so controlled that it’s impossible to get that sheer brilliance that was almost expected in the early 70s, if you were going to be regarded as any good.