It was used during the Pope's 1979 visit to Ireland as a response to Seacht Suailcí.
Seinn allelu, seinn allelu,
D | "Dm" G B (A F)| G3 (B/2c/2) |"Bb"d d (cd) | "Gm"B3 (B/2c/2)|
w:Seinn al-le-lu_ia, seinn_ al-le-lu_ia, seinn_
"Dm" d d "C" c (d/2c/2) | "Bb"B B "Am"(A/2G/2 ) (F/2D/2)| "Dm" G A "C"(cA )| "Dm"G3 z ]
w:al-le-lu, seinn_ al-le-lu,_ Seinn_ al-le-lu_ia.
About ABC notation