Tägliche ûbungen Excercices journaliers Louis R. Feuillard (1872–1941) has become known chiefly as the teacher of Paul Tortelier who called him a man with an extraordinary educational instinct. His 'Daily Exercises' take up the most important aspects of the cello technique, such as exercises in neck and thumb positions, double stops and bowing exercises. It is particularly because of the logical structure of the exercises that they have been among the standard works of violoncello study literature since their publication in 1919.