The uploader says this was filmed in 1980 at the White House. If that’s the case, it wasn’t an evening concert, judging by the way Pres. Carter is dressed.

In any case, everybody was keyed up for this show; the tempo races and the flourishes fly. Monroe is literally ripping paradiddles – snare drum licks – on the mandolin.

Fasten your seat belts for this wild performance of “Uncle Pen”.