"Tom Traubert's Blues (Four Sheets to the Wind in Copenhagen)" (commonly known as "Tom Traubert's Blues" or "Waltzing Matilda") is a song by American alternative rock musician Tom Waits. It is the opening track on Waits' fourth studio album Small Change, released in September 1976 on Asylum Records. Written by Waits and produced by Bones Howe, the song's chorus is derived from the Australian folk song "Waltzing Matilda" and its lyrics narrate alcohol abuse, inspired by Waits' own experiences in Los Angeles and Copenhagen.