We know Roger-Ducasse from his wonderful single organ composition of 1909 Pastoral pour Orgue (see below) but I find him to be a skilled and interesting composer. Have a listen to some of his music it is modern but very approachable.
The Pastorale is challengimg to play so I went in seach of a simpler piece to represent him that could be played straight off the page by most members and here it is.
Born 18 April 1873 Bordeaux
Died 19 July 1954) Le Taillan-Médoc (Gironde)
Jean Roger-Ducasse studied at the Paris Conservatoire with Émile Pessard and André Gedalge, and was the star pupil and close friend of Gabriel Fauré. He succeeded Fauré as professor of composition, and in 1935 he succeeded Paul Dukas as professor of orchestration. His personal style was firmly rooted in the French school of orchestration, in an unbroken tradition from Hector Berlioz through Camille Saint-Saëns. Among his notable pupils were Jehan Alain, Claude Arrieu, Sirvart Kalpakyan Karamanuk, Jean-Louis Martinet, and Francis George Scott.
He was particularly known for his operatic stage works and orchestral compositions and also piano pieces and chamber music, a piano quartet, a Romance for cello and piano, and two string quartets.
There is one performance from 2016 of the Pastorale in Concert Hall but it's a good one.
Nathan Laube plays the Hauptwerk organ of Joerg Glebe in a live recital using the sample set of Caen extended. Have a listen here;
https://www.contrebombarde.com/concerthall/music/21907