On April 29 and June 3, Sumiko Sato’s performance was broadcast on FM Hanamaki’s “Iwa Iwa! Marble Music” on April 29 and June 3.
The broadcast was introduced on the official website. Please take a look.
https://fm-one.net/岩岩！マーブルミュージック⑨%E3%80%80profile394佐藤司美子/
https://fm-one.net/岩岩！マーブルミュージック⑨%E3%80%80profile399佐藤司美子/