According to The New Penguin Dictionary of Music, Claude-Achille [really named Achille-Claude] was a French composer, also noted as critic; born near Paris, worked and died in Paris, visited Russia 1881. Worked out new outlook on harmony and musical structure, of which the name impressionism reveals its kinship with contemporary visual art; he has affinity also with such poets as Verlaine and Baudelaire, whom he set. Was first pro- then anti-Wagner; his opera "Pelleas and Melisande" (dedicated to André Messager ) is unlike any predecessor though seemingly indebted to Mussorgsky for cultivation with natural speech-inflexions. In addition to operas he wrote works for orchestra, 2 books of piano preludes and other piano works; string quartet, violin sonata and cello sonata.
For data housekeeping purposes he is listed in these webpages as the one-off composer of Golliwog's Cakewalk (1908) which is of course immense ragtime interest.

Recorder Sheet Music

Children's Corner (4 Pieces arranged for Recorder Quartet) (D/A/T/B) Publisher: Heinrichshoven's Verlag (N02142)

Children's Corner (4 Pieces arranged for Recorder Quartet) (D/A/T/B) Publisher: Heinrichshoven's Verlag (N02143)

Fanfare for a Procession (B/B/B/B) Score. Publisher: Magnamusic (PP00114)

Golliwogg's Cake-Walk (S/D/A/A/T/T/B/GB) Score and Parts. Publisher: Editio Musica Budapest (HARA066)

Brass Sheet Music

Le petit Negre (4 Trombones) Score and Parts ISBN M-50144-110-5. Arr./Editor: Otto Hornek Publisher: Brass Works Munich (HBX-007)

Golliwogg's Cake Walk (8 Trombones) Score and Parts ISBN M-50144-114-3. Arr./Editor: Otto Hornek Publisher: Brass Works Munich (HBX-014)

Fanfare for a Procession (B/B/B/B) Score. Publisher: Magnamusic (PP00114)

Golliwogg's Cake-Walk (S/D/A/A/T/T/B/GB) Score and Parts. Publisher: Editio Musica Budapest (HARA066)