A Blogfinger reader suggested this video. He said, “Incredible! I’d always heard that Glenn Campbell was first known as one of Nashville’s greatest studio musician; now I see why!”
Here he is with “a terrific guitar break…” Glenn recorded this in 1967.
And here is a 2015 version, almost 50 years later, nominated at the Grammys and performed by “The Band Perry” The audio is much better than on the You Tube above:

The Band Perry
Paul enjoyed the two versions of Gentle on my Mind. Must say I’m a little more armored with Glen Campbell’s, but both were enjoyable.
Thanks
Mary