Pianist Donald Pirone, the leading interpreter of Rathaus’s piano music and author of the first in-depth study of it, has released the composer’s final piano sonata, the Sonata No. IV, Op. 58, on New Focus Recordings (issued February 20, 2026). Recorded at LeFrak Concert Hall, Queens College, the performance documents the only one of Rathaus’s four piano sonatas written in New York; the earlier three date from his Berlin years. The release reflects influences of Schoenberg, Stravinsky, and Bartók while remaining grounded in a late-romantic sensibility — a portrait, as the label puts it, of an artist in exile. The recording drew a warm notice in Blogcritics in April 2026, with the reviewer praising Pirone’s reading as natural and deeply studied. The recording can be bought on New Focus Recordings website . We are grateful to Dr. Pirone and New Focus Recording for permitting us to use excerpts from this recording in the film.