Hell's Gate Island - Shinichi Tanabe

[amyzh]

Does anyone know where I can find information about the musician behind the film score for Hell's Gate Island/Gokumon-to (1977).

I was reading up this page https://www.tohokingdom.com/cd/hell_gat ... d_cul.html
and I couldn't find any information on either Culture Publishers or Shinichi Tanabe (is he still alive?) on the internet.

Any help is much appreciated!