Here are a couple of Doc Watson songs I recorded at Merlefest on one of our cameras:
Windy And Warm - an instrumental. Doc and some other guy trade leads.
Morning Side Of The Mountains - Doc announces it by saying Paul Anka had a hit with it, back in the day. Thanks to Gary in comments for coming up with the title; I couldn't figure it out, and so the mp3 is named and tagged incorrectly.
They aren't very big (600K and 900K, IIRC).

The Morning Side of the Mountain, Tommy Edwards
thankee, sir.
Windy & Warm is an old surf tune by the Ventures circa 1964. Doc speeds it up quite a bit. Who would have guessed he was into surf music? Very nice.