Toccata cromatico was published as the Zen-On Piano Pieces 476 in 1993. The year of composition is unknown, but it is not impossible to see it as a piece written in the 1940s, comparing its style with those of the works composed in the same period by Matsudaira. The piece is a sort of perpetuum mobile played mainly in the high range. ‘Cromatico (chromatic)’ is related to the chromatic movement of the inner voice played by the right hand, as well as to the augmented or diminished intervals played by the left hand in the beginning. However, the music is not so much atonal as modal, considering that the arpeggios from the low range to the middle range indicating E major serve as punctuation marks and that perfect fifths often appear in the left hand’s part instead of augmented or diminished intervals. There is almost no change in the texture of the right hand’s part, while the left hand’s movement is more flexible, making the music more energetic and richer in rhythmic variety. After the climax is established through the parallel harmony in the left hand’s part, the right hand plays fast figures in the highest range, and both hands play a chord featuring an augmented fourth.