He founded the Forum Voix Étouffées to bring attention to the music of composers persecuted, exiled or forgotten, especially suppressed by totalitarian regimes of the 20th century.

Amaury studied musical composition with Max Deutsch at the Royal Conservatory of Mons [fr] in Belgium.

[2] Throughout his career, du Closel directed more than 80 orchestras,[1] notably the Berliner Symphoniker and the Orchestre Les Métamorphoses that he founded in 2018,[1][3] to play on modern instruments in a historically informed manner, with a focus on music from the 20th century.

Suppressed Voices), an association dedicated to performing music by composers persecuted and forced into exile by Nazi Germany and other totalitarian governments of the 20th century, such as Ernst Krenek, Franz Schreker and Viktor Ullmann.

[1][4] In 2005 he published Les Voix étouffées du Troisième Reich, about composers persecuted by the Nazis.