He became recognised for his voice, primarily for his renditions of the Pie Jesu from Gabriel Fauré's Requiem at the Église de la Madeleine.
The young Aubert met Fauré at the Paris Conservatoire, and he regularly attended at his composition classes, which greatly influenced his development.
Aubert wrote one opera in three acts based on classic fairy tales by Charles Perrault to a libretto by J. Chenevière, entitled La fôret bleue ("The Blue Forest").
The enchanting characters and delightful plot enabled the work to achieve popular success in other theaters, including Boston later the same year.
The opera was recorded for French radio in 1954, conducted by Eugène Bigot, with Raymond Malvasio, Martha Angelici, Claudine Collart, Jacqueline Brumaire, Louis Noguéra and Lucien Lovano in the cast.