Eternal sonata (トラスティベル 〜ショパンの夢〜, Torasuti beru ~shopan no yume~, Trusty bell: chopin's dream) is a role-playing video game developed by tri-crescendo and published by bandai namco games. The xbox 360 version of the game was released on june 14, 2007 in japan, September 17, 2007 in north america, And october 19, 2007 in europe.