My friend Robert Rodriquez just got the 2019 Closing the Gap album by Molsky's Mountain Drifters. Robert is quite taken by an instrumental piece on the album called "The Graf Spee." Robert is blind, and can't read the album notes on the song, if there are any. Can anybody give background information on this tune? As far as I can tell, the tune first appeared on a 2013 Bruce Molsky album titled If It Ain't Here When I Get Back.
I found a YouTube recording of the tune here:

https://www.youtube.com/watch?v=nRWd8wrGjxA

The notes say "Graf Spee" is a "midwest fiddle tune collected from John W. Summers."

I suppose the tune is about the Admiral Graf Spee, a German ship that was scuttled in December, 1939.

But can anybody come up with more information about the tune?

-Joe-