曲谱简介：

Yume Sekai Yume Sekai (ユメセカイ, lit. "Dream World") is used as the ending theme to the anime Sword Art Online. The anime television series produced by A-1 Pictures aired in Japan between July and December 2012. An Extra Edition episode aired on December 31, 2013, and a second anime series, titled Sword Art Online II, began airing in July 2014. A video game based on the series, Sword Art Online: Infinity Moment, was released on PlayStation Portable in March 2013, with a second game, Sword Art Online: Hollow Fragment for PlayStation Vita (PS Vita) released in April 2014. A third game, Sword Art Online: Lost Song, will be released on PlayStation 3 and PS Vita in March 2015. And Yume Sekai was performed by Haruka Tomatsu who is a Japanese voice actress and singer, employed by Music Rayn (a Sony Music Entertainment Japan company).