She was introduced to the musical world at a young age and was friends with both Nadia Boulanger and Mel Bonis.

[2] She wrote the libretto for the lyrical drama Bérengère composed by her husband that was published in 1912 under the pseudonym Charles Sohy.

Her musical compositions were performed by Paul Dukas, Maurice Ravel, and Gabriel Fauré frequently at the Salon of Marguerite de Saint-Marceaux, where she and her husband were regulars (he starting in 1908, she in 1913).

[3] In Florence Launay's list of the most important female composers who were active in the 19th century France, Sohy's life and creative period falls between those of Lili and Nadia Boulanger, who were her contemporaries.

The complete works of Charlotte Sohy, published as Présence Compositrices, comprises 35 opus numbers.