Corbineau was dedicated to preserving the Breton identity and supported the merger of Loire-Atlantique into Brittany [fr].

[2] In 1966, he performed in Brittany with Jean Chocun [fr] under the name "Les Classic's" and singing folk songs by the likes of Graeme Allwright and Hugues Aufray.

[3] In 1970, Jean-Louis Jossic [fr] joined Chocun and Corbineau and the group Tri Yann was formed.

Prior to becoming a professional musician, Corbineau worked as a produce grocer at hypermarket chain Record [fr] in Saint-Herblain.

[4] In December 1972, when Tri Yann performed at the Olympia in an opening act for Juliette Gréco, he was still working at the store.