秘密結社の儀式かよ…
https://i.imgur.com/vPkoJHV.jpg
https://i.imgur.com/4bebmQw.jpg
https://i.imgur.com/7XjN9pI.jpg
https://i.imgur.com/oKkZakO.jpg
https://i.imgur.com/9vDVrSX.jpg
ピアノと指揮者は覆面しなくていいだろw