Ran across this guy through a friend of mine … wow. Watch. Just watch and listen.
Adam Fulara plays:
J.S. Bach: BWV 784: Invention No. 13 in A Minor, BWV 847: Prelude in C Minor, BWV 848, Goldber Var. No. 1, and Goldber Var. No. 2.
Scott Joplin: Maple Leaf Rag
And a related clip: Jean Baudin plays the Super Mario Bros. theme on an 11 string bass.