Hmm, there's no tune in the thread Mick cites.

Is this the tune you need?

T:Down By the Tan-Yard Side
M:6/8
L:1/4
K:Bb
F/2| F F/2D/2-E/2 F/2| B3/2 F D/2| E C/2 B, A,/2| B,3/2- B, F/2| B c/2 d c/2|\
B c/2 F G/2| _A F/2E/2-D/2 E/2| F3/2- F F/4F/4| B c/2 d c/2| B c/2 F G/4G/4|\
_AF/4-E/4 C E/2| F3/2- F E/4E/4| E D/2 E G/4B/4| B A/2 F D/2| E D/2 B, A,/2|\
B,3/2- B,||