One of Teizo Matsumura's few piano pieces. It was included in Volume 2 of "Contemporary Piano Pieces for Children," commissioned by Toho Gakuen's "Music Class for Children" from 24 composers, and published by Shunjusha in 1969. The premiere was given by Mayumi Kato at Iino Hall on July 16 of the same year.

In the first piece, a melody that Matsumura stated was derived from ancient Greek music is first played lento, after which the music transitions to a section said to have been composed "while dreaming of a sun-drenched afternoon in the Aegean Sea, which I have not yet visited." The register suddenly rises here, and another melody is played moderato over an arpeggiated accompaniment. Soon, as chromatic movement emerges in the accompaniment, the piece abruptly shifts to A major. The opening melody reappears, and after undergoing a similar process, it again shifts to A major to conclude.

In the second piece, said to have been inspired by the first, a simple, long-breathed melody is superimposed on a two-hand figuration reminiscent of the swaying of waves. Yoshio Hachimura described this work as possessing "a mysterious, breathtaking beauty" and being like "the ennui of Sukhavati (Pure Land)." In his later years, when composing the music for the film "A Beautiful Summer in Kirishima" (2003, directed by Kazuo Kuroki), Matsumura utilized this work as a primary source material.