Unfortunately, JTT, some folks do get snippy about this stuff. Sorry if you felt a bit rebuffed. I only learned about the difference between "bluegrass" and other kinds of mountain/Appalachian music since wandering into the Mudcat a couple of years ago. And sometimes I still forget that it's a kind of music that was actually"created" by someone, that it's not just a generic term for a particular style of mountain music.

I'm sorry I can't be helpful on finding the recording you're talking about, but as I had not seen the original posting, I'm happy to be lurking on this one to see what other suggestions get made.

Best of luck in your quest,

WyoWoman