Your question is very mysterious.

At that time, an interlude album of "Birdman of China" was released.

The music is "Tricycle" written by Koji Endo and performed by Yoshiharu Endo.

The Japanese musical instrument "Hu Bow" is used instead of the Chinese erhu.

The sounds between the two are very similar, so it is inevitable that they will be mistaken.

Attached is a description of the album.

Seeing that you really want to know, I looked for it. There's only so much you can find online.