We are aware of the existence of this work only from Miloš Šafránek’s monograph, which also mentions the year and place of its composition: 1931 in Polička. However, it is highly possible that he confused this work with the composition To Božánek and Sonička, H 221. There are no references to the manuscript, and it remains missing to this day.
Harry Halbreich, Bohuslav Martinů: Werkverzeichnis und Biografie, Mainz: Schott Music, 2007, p. 476.