Michiwa Kuduchi
Michiwa Kuduchi is a Ryukyuan folk song from Okinawa Prefecture, Japan. Its formal name is "Michiwa Kuduchi". When the song is accompanied by a dance, it's referred to as "Aki no Odori".
Aki no Odori is relatively younger than most Ryukyuan folk music, which is why its lyrics are in Japanese rather than in one of the Ryukyuan languages.