Composed in July 1939, premiered on December 24, 1939, at the 2nd Public Performance of the orchestra "Prometheus" at the Sanshi Kaikan Auditorium, with Zenzo Matsumoto on violin and Haruko Fujita on piano. Ozaki, who was dispatched to the front in August of the same year, did not hear this premiere.

Movement 1: Night Piece

Sonata form. It possesses a dim lyricism and holds an evocative stillness. A posthumous work for cello and piano from 1943 also bears the title "Song of Night."

Movement 2: Toccata

A rhythmic toccata supported by ostinato.