You don't have to wait long for the ABC because I don't have to figure it out for myself; Liam Hart already transcribed it on his song page http://www.webcom.com/~liam/gaelsong/tunes/moghile

T:Mo Ghile Mear
M:4/4
C:Traditional
B:A Sto/r 's a Sto/ri/n
K:G

Verse 1 and chorus:

D3DD2DE|G2A2B4|
c2BAB2A2|G3ED4|
G3FE2D2|G2GAB3c|
d3ed2B2|A3GG4||

Other Verses:

B2d2d2B2|A2G2G3A|
B2d2d2B2|A2G2A3A|
B2d2d2B2|A2G2G2AB|
c2BAB3A|G2E2D4||


B: "a stór is a stóirín" is an album by Padraigín Ní Ùllacháin

there are links to various sites containing ABC collections at
www.gre.ac.uk/~c.walshaw/abc

Line breaks <br> added and link fixed so it begins with a href -guess who-