I've never got anywhere with that site - seems to need some sort of scripting I don't usually have enabled. And it doesn't look like it's designed to hand out anything free, which is not an unreasonable thing to ask for a widely played public domain tune from 150 years ago.
Here it is the way I play it:
X:1
T:Waiting for the Federals
T:Seneca Square Dance
M:C|
L:1/8
Q:1/2=112
K:G
B4 B2AB|d2B2 BAG2|B4 d3B |ABAG E2D2 |
B4 B2AB|d2B2 BAG2|ABAG E2F2|G4- G2z2:|
g4 gage|d2B2 BAG2|g4 gfga|be2d e2f2 |
gaba g3e |dg2d BAG2|ABAG E2F2|G4- G2z2:|
Sometimes played starting much slower, then accelerating a LOT after the first two times.