This is string quaret ver.
Chiisai-aki-mitsuketa composed by the Japanese composer, Yoshinao Nakada(1923.8.1 - 2000.5.3). "Chiisai" means little, "aki" means autumn, and "mitsuketa" means someone found it. "Chiisai-aki-mitsuketa" does not mean that fall is little. It means that someone has found something that signals the arrival of autumn.
Akatonbo composed by Japanese great composer, Kosaku Yamada(1886.6.9 - 1965.12.29). The red dragonfly is a very beautiful insect and ushers in the coming of autumn. In Japanese, it is called Akatombo. The song is full of nostalgic lyrics about seeing a red dragonfly at dusk and reminiscing about the past.