Parigi 1851 - ivi 1931
Six signed autograph letters, of which three addressed to the Parisian composer Marc Delmas, dated between 1913 and 1924. Together with Charles Bordes and Alexandre Guilmant, in 1894 he founded the Schola cantorum, which initially only performed Gregorian music, and later it became a center of education, teaching and culture, with courses on a whole range of subjects. D'Indy taught there; later he also taught at the Conservatoire, among his students a mention must go to Darius Milhaud. Various formats.