Well this is sad. One of my most haunting TBF memories was hearing Ralph Stanley sing "Oh Death" acapella late night in the box canyon in 2001! My lord that brought goose bumps (and is right now as I type this) and chills down my spine. Sorry Dr. Ralph we just couldn't spare you over to another day.
https://youtu.be/2xmRWj7gJEUThat song is the exact memory that came to my mind as I read the news. I had the same chills remembering the strength of his voice (at ~75 years!) and how perfectly the sound resonated. One of my fondest memories of TBF and one that never fades. He will be missed.