Here are 2 famous musicians from Japan died in Natural causes:
Noriko Awaya (August 12, 1907 Aomori-September 22, 1999 Ōta, Tokyo) was a Japanese singer.
Her related genres: Chanson and Ryūkōka.
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Michiko Tanaka (July 15, 1909 Tokyo-May 1, 1988 Munich) a.k.a. Michiko Meinl, Michi Tanaka or Michi de Kowa was a Japanese singer and actor.
Read more about Michiko Tanaka on Wikipedia »