[2] Vamos joined a string quartet in Mexico City, where her dance composition Dying Eagle was performed in the Opera House.

[2] She formed the Trio Moderne[4] with flutist Christine Howells Pfund and harpist Marie Hughes Marguarrie, which performed frequently, often playing arrangements by Vamos.

[2] Vamos received the Sigma Alpha Iota Award for her Suite for Cello and Piano, which Pablo Casals praised in a letter to her in 1960, saying "I have had much pleasure in reading your composition which shows real talent.

She continued to give private lessons and arrange student recitals at the assisted living residence until her death in 1992.

[6] Upon her death, ownership of all copyrighted works was transferred to Ariel Witbeck, a dear friend and local cellist to the San Francisco Bay area.