August de Boeck studied on the Brussels Conservatory. He produced a camaraderie with Paul Gilson in 1889 and Gilson became his instructor for orchestration. The set were inspired by Rimsky-Korsakov and various other members from the Russian Five. Jointly they presented musical impressionism into Belgium. De Boeck trained on the Royal Flemish Conservatory as well as the Brussels Conservatory and offered as director from the Mechlin Conservatory. He was also organist at many churches. His compositions are lyrical and ironic in sense and are thought to be representative of the Belgian music of his period.