The core of the discography is the first two original soundtrack albums, one for "Little Busters!" and the other for "Ecstasy". The soundtracks were produced by Key Sounds Label and released in 2007 and 2008. The music on the soundtracks was mainly composed and arranged by Jun Maeda, Shinji Orito, Magome Togoshi, Manack, and PMMK. The third soundtrack album is for the "Little Busters! Refrain" anime series. Five remix albums were released for the two games between 2007 and 2013. An EP for "Little Busters!" was released in 2008 covering three pieces of theme music used in the game as well as remix versions of those songs. A compilation album mainly containing previously released vocal tracks for the visual novels and anime adaptations was released in 2014. Eight singles were released between 2007 and 2013: a theme song single for "Little Busters!"; four image song singles covering the characters Rin Natsume, Saya Tokido, Kanata Futaki, and Sasami Sasasegawa; and three theme song singles for the anime series adaptations.