The names "Gagoug" and "Choti" were reportedly conferred by Django's widow Naguine on request from Matelo, who had learned the tunes without names. Django also worked on composing a Mass for use by the gypsies, which was not completed although an 8-minute extract exists, played by the organist Léo Chauliac for Reinhardt's benefit, via a 1944 radio broadcast; this can be found on the CD release "Gipsy Jazz School" and also on volume 12 of the "Intégrale Django Reinhardt" CD compilation.