works for "BMSをいっぱい作る2018 -Launching Site-"( https://ippaitukuru2018.tumblr.com/ )- - - - - - - - - -SoundCloud: https://soundcloud.com/bmsuna Twitter: https://twitter.com/Na_kaith - - - - - - - - - -
http://www.nicovideo.jp/watch/sm32426248