Etkin, who showed considerable talent early in life, was the youngest contestant at the inaugural I International Chopin Piano Competition, where she was awarded the 3rd prize.
During the early 1930s she settled in Berlin to study with Professor Moritz Mayer-Mahr.
She developed a very large repertoire, including the late sonatas of Beethoven, the Rachmaninov concerti, the Goldberg Variations, Prokofiev's and Karol Szymanowski's works and Godowsky's arrangements of the Chopin Waltzes.
She played a good deal of Chopin, and won critical approval for her performance of his first piano concerto (E minor, op.
[2] As the German army was retreating from Warsaw a soldier threw a live grenade into a shelter where they and several other people were taking refuge.