Pretty classy version here from Alison Krauss + the best in the biz:
Alison Krauss, Sam Bush & Tony Rice - Sawing on the Strings
- must have watched it a dozen times on the DVD from which it comes.

Alison sings "look at old Will, pattin' his toe" ... surely "tappin' his toe" would be correct!

Don't know who wrote the words, maybe some catters do...

- Tony (Rees not Rice, unfortunately)