The most mysterious songs in Japan - The original links

 http://www.skyboom.com/asbel8097/hatena.wav

The original link 2 one of the unreleased & unidentified tracks in the Audio Representative Associates tape

From a forum in the Japanese language, the link was uploaded July 24, 2000. The site in the link is down but the original file is a 1 minute low quality sound clip of the song.

The whole track & another from the cassette entitled "wagamama", a folk-sounding composition with more mature sounding vocals became available from 2022 onwards