More and more gold always coming in from my music mining expeditions of old Japan. If you’re immersed in new music as much as I am, an appropriate RIYL for this would be Weyes Blood. Very similar timbre to their voices and theatric nature to their instrumental.
If I remember correctly from reading this somewhere, I feel like Yoshiko Sai wasn’t a very popular artist in Japan at the time when she was releasing albums. As in, she made these immaculate folk rock records and no one really paid attention to it. We really live in a miraculous time where a music blog like mine, for instance, can find this stuff and repost it to continue its legacy. It’s a great record and again – you can find it on Youtube, probably.