Tokyo,Opera House - opera,ballet,play,….
http://www.nntt.jac.go.jp/english/about/teatre/operahouse/index.html
http://www.nntt.jac.go.jp/english/opera/index.html
http://www.nntt.jac.go.jp/english/release/updata/e20000048.html
http://www.operacity.jp/en/ag/