There is a rumor that Capoul sang in a group named Les Troubadours Toulousains. If this is true the group was made of Capoul, Gailhard and Mademoiselle Baron. The only record heard is from the final trio of Faust. It reveals a good bass, a good soprano and a weak tenor. It could have been Capoul at the end of his career, but nothing has been proven yet.