Eternal Sonata features a large soundtrack, mostly composed by Motoi Sakuraba, with seven of Chopin's compositions performed by Russian pianist Stanislav Bunin and presented in surround sound. Featured music of Chopin's include Étude Op. 10, No. 12 , Étude Op. 10, No. 3 and Polonaise Op. 53 . A Japanese aria composed by Sakuraba titled "Heaven's Mirror" ( 鏡天花 , Kyōtenka ) is also performed by Akiko Shinada for the soundtrack. The game's background music was released in Japan as the four-disc album Trusty Bell: Chopin's Dream Original Score ( トラスティベル 〜ショパンの夢〜 オリジナルスコア , Torasuti Beru ~Shopan no Yume~ Orijinaru Sukoa ) on July 25, 2007 under the King Records label.