How big is Musical Theatre in Japan?

big musical theaters accommodation number on 10000 used
many way except of music, instance tokyo dome(about 50000 people) used professional baseball games on addition music, osaka dome, nagoya dome so.
saitama super alina (about 15000) used music performance, wrestling game.

japanese musicians, status of music theater not accommodation numbers, history.
instance on point, nihon budokan adn shibuya kokaido famous.
many young japanese bands or singers long stages.
many top artists active performed @ stage once.
many musicians have ideal root, @ first performe @ street,
, performe @ sinjuku roft(about 100), next hibiya open-air stage(about2000)
, third stage sibuya kokaido hall(日比谷公会堂） (about3000), @ last nihon budokan(日本武道館）
10000 people, japanese singers or bands long standing @ stage on budokan rather tokyo dome , on. because long history exist.

considering of music theater of name of historical music,
teikoku gekijou　theater（帝国劇場）is famous.
history long. famous theater.
historical japanese performance musical or kabuki（歌舞伎）is done in teikoku gekijou.
may similar broad way in u.s.a.
sinjuku koma gekijou（新宿コマ劇場）as similar type theater existed once.
theater closed few years ago.

wikipedia 帝国劇場
http://en.wikipedia.org/wiki/imperial_garden_theater
http://ja.wikipedia.org/wiki/%e5%b8%9d%e5%9b%bd%e5%8a%87%e5%a0%b4

wikipedia 日本武道館
http://en.wikipedia.org/wiki/nippon_budokan

hey!
wondering how popular/big musical theatre in japan, or if exists @ in japan move there day , able perform professionally job.

Arts & Humanities Theater & Acting Next