In 1974, after Tatartcheff's return to Montreal, Anna McGarrigle asked him to help her write a song, which became "
Complainte pour Ste. Catherine", featured on the sisters' debut album,
Kate & Anna McGarrigle As McGarrigle recalled many years later: Tatartcheff would go on to contribute a total of twenty-four songs recorded by the McGarrigle sisters, most of them in French. At some stage, he also became a farmer in
Dunham, Quebec, according to the sleeve notes of the album
The McGarrigle Hour. ==List of songs==