The link ^ that you posted mentions the school that she later established.
She is an artist with many skills it appears.
Another recording
Date of birth: 1927年3月21日
From the secondary description of the song , which is called 'Memoir',
It might be connected to
90.メモワール <「まんが世界昔ばなし」テーマ曲集> 試聴
Memoir- Manga Sekai Mukashibanashi
Manga World Folk Tales" (cartoon world folk tales) was broadcast on TBS series TV anime. Broadcast period is broadcast from October 7, 1976 March 28, 1979. All 127 times.
So you could try to communicate with TBS?