||Paris: Christiné, 1911.
||optional string quintet
The parts include 1st and 2nd violins, viola, cello, bass, but the string parts do not include the 16-bar introduction in the piano part, and the string parts also have the subtitle "Polka-Marche d'après la Chanson de Polin, so it seems the string version is separate and "based on" the vocal/piano version. One of the cover pages also gives options for piano solo and voice solo, and the string parts. Tagged for all of those.