And here is the tune for it.

X:1
T:The Tailor and the Mouse
B:Sharp & Baring-Gould, English Folk-Songs for Schools, 1905, no. 49
Z:Collected by Sabine Baring-Gould?
L:1/8
Q:1/4=100
M:4/4
K:Bb
"Allegretto"d2|B2 G2 G2 G2|F2 D2 F4|D2 D D D2 d2|
w:There was a tai-lor had a mouse, Hi did-dle un-kum
B4 G2 d2|B2 G2 G2 G2|F2 D2 F4|D2 D D D2 d2|B4 G2 z2|
w:fee-dle. They lived to-gether in one house, Hi did-dle un-kum fee-dle.
B2 G G d2 G2|B2 G2 d2 G2|A2 c2 c2 c2|A4 c2 z2|
w:Hi did-dle un-kum ta-rum tan-tum Through the town of Ram-say,
B2 G G G2 G2|F2 D D F4|D2 D D D2 d2|B4 G2:|]
w:Hi did-dle un-kum o-ver the lea, Hi did-dle un-kum fee-dle.


See Martin Graebe's Sabine Baring-Gould site for the MS reference.

I am reminded of The Haggis of Dunbar...