Do you mean "Bull At The Wagon" as played by the pre-war Lewis Brothers and also by the late Earl Collins, a tune from the Ozarks? I suspect you do as Sara likes to play some Old Time fiddle tunes - I might even have jammed this one with her at the last Gainsborough Old Time Festival in Feb.
I could send you a Tabledit version of it (after I've written it!) if you PM me your email address.
Cheers
Ray