Started in 1966 as part of Sweeney's Men. He co-founded Planxty in 1970 and Mozaik in 1985. In between, and after that period he also developed a solo repertoire. Out of this he co-formed Patrick Street in 1986. Following the recording of his second and third solo albums, he re-formed Mosaic with a different line up in 2002. He also became part of LAPD. Andy received the Lifetime Achievement Award at the inaugural RTÉ Radio 1 Folk Awards in 2018.