福間洸太朗さんのインスタグラム写真 - (福間洸太朗Instagram)「Thank you very much for the warm BD wishes and thank you to those who came to my concert in Berlin! On my 38th birthday, I played "Hammerklavier Sonata in public for the first time, and it was a thrilling adventure! Now I safely got back in Japan and will stay quarantined for 14 days, so I've got enough time to pratice and charge myself for the upcoming concerts.💪 #Berlin #pianosalonchristophori #birthday #friends #Beethoven #hammerklaviersonata #Musicianslife」9月3日 15時18分