Listen to Scully Casey's/O' Byrne's online. Scully Casey's/O' Byrne's is an English language song and is sung by Kathleen Smyth, Peg McGrath and Mary Mullholland. Scully Casey's/O' Byrne's, from the album Discover Celtic Music - Traditional, was released in the year 2010. The duration of the song is 3:30. Download English songs online from JioSaavn.