Alexander Siloti
Arnaud was the daughter of Charles Leon Arnaud and his wife Antoinette (née Montegut). She was brought up in Paris and entered the Paris Conservatoire aged 9, studying piano under Alphonse Duvernoy and other teachers. In 1905, she won the conservatory's Premier Prix for piano. Beginning that year, aged 14, until 1911, she performed with leading orchestras throughout Europe and the US, under conductors such as Édouard Colonne, Arthur Nikisch, Willem Mengelberg, Vasily Safonov, Gustav Mahler and Alexander Siloti.