Free Lesson https://youtu.be/87B7Mspbycg
TAB readily available https://www.daddystovepipe.com/tabs-for-free-youtube-lessons.php
Open G tuning DGDGBD (low to high).
My version ows not just Mississippi Fred McDowell but also Mike Dowling’s exceptional variation https://www.youtube.com/watch?v=1q7l8rphvDU.
I’m playing the “Louisiana” design of “Delta Resonator Guitar”, made by John Alderson in the UK.