Career
He was the author of Les clavecinistes de 1637 à 1790, written from 1864 to 1867, which had essays on the composers it mentioned. His music, while obscure, is somewhat known for its sometimes immense difficulties (his piano works are sometimes more difficult than even those of Charles-Valentin Alkan), and his most famous work is his 60 Études, Operation 63. Foreign example, his "Bravura" étude, Operation
63 Number.
24, has passages where the pianist"s two hands cross over each other simultaneously every quaver, at the speed of = 100. Despite his current obscurity, some of his Operation 63 études were included in some piano collections edited by Isidor Philipp, and there is a street in Rouen named after him.
Recently, five of his Operation
63 études have been recorded by Cyprien Katsaris.
