He was instrumental in establishing the B/C style of button accordion playing in Irish traditional music.
In 1949 he joined the Tulla Céilí Band, replacing the Galway accordionist Joe Cooley.
The collection includes "Cooley’s Hornpipe", "Dinny O’Brien’s Reel", "The Boys of Lough Gowna" (jig), "The New House".
Eileen also released a CD of his music, Aon le h'Aon, played by herself, at the Willie Clancy Summer School in 2012.
[1] O'Brien's daughter Eileen[5] is a well-known fiddler and pianist, and a member of the Boruma Trio.