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D88EC7E8-E3FB-4F6D-A2CE-00F7A1C48C48@1xCreated with sketchtool.ニコニコ動画で視聴

□和風BGM□ 紅葉の癒しと純正律ピアノ　#0012 _ Just Intonation Piano Music（ A＝432hz ）ニコニコ動画で視聴

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□和風BGM□ 紅葉の癒しと純正律ピアノ　#0012 _ Just Intonation Piano Music（ A＝432hz ）

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