(b Avesnes-sur-Helpe, 22 July 1793; d Paris, 1 Sept 1866). French flautist and composer. He studied with Jean-Louis Tulou in Paris, where he met Henri Brod, Rossini and Reicha; the last mentioned is believed to have taught him harmony and composition. Walckiers’s first compositions were for flute ensembles, and after 1820 he also wrote piano works, probably under the influence of Kalkbrenner, Thalberg and Heinrich Wilhelm Marchand, with each of whom he collaborated on a work for flute and piano. His works, the vast majority for flute (often with alternative settings) include 19 solos, 113 duos, 19 trios and 13 quartets. He also made arrangements of themes from popular operas of the day. Some works specify flute with either piano or orchestra, but no orchestral parts survive. In his final years Walckiers also wrote string quintets and piano quintets (with cello and double bass, or two cellos), and some choral works. Walckiers also wrote a Méthode de flûte and a textbook Principes élémentaires de musique. ‘His music’, Richard Rockstro believed, ‘abounds in such delightful freshness and such impulsive variety of sentiment that in its own peculiar style it is absolutely unrivalled’. All Walckiers’s known works were published during his lifetime, and some first editions are housed in the Bibliothéque Nationale in Paris.