[3] Roumanova was called "a brilliant pianist and a most interesting composer" when she relocated to the United States in 1918.

[5][6] She also appeared in the 1922 silent film adaptation of the Rubaiyat,[7] and taught piano students in her studio.

[8] As Ariadna Mikeshina,[9] she performed regularly in Los Angeles[10] New York City[11][12] into her seventies.

[14] She was described in 1975 as "calmly ignor[ing] the last 75 years of musical thought" in a recital at Carnegie Hall.

[16] After her death in 1982, at age 81, a collection of her musical manuscripts was donated to the Russian State Archive of Literature and Art.