Becoming increasingly disillusioned with the music business and politically radical, Sky released the controversial and scabrously satirical Songs That Made America Famous' in 1973 (the album was recorded in 1971 but rejected by several record companies before it found a home); to this day he claims to have received no royalties for the album…..Sky gradually moved into the field of Irish traditional music, founding Green Linnet Records in 1973. Today he is recognised as an expert in building and playing the Irish uilleann pipes, often performing with his wife, Cathy. He has also published several books on the subject. (read more at Wikipedia)