Life of Sound

 is the fifth album released by girl next door.

CD

 * 1) Egao no Kiseki (笑顔の軌跡)
 * 2) Koi no Yokan (恋の予感)
 * 3) signal
 * 4) Namida no Yuugure (涙の夕暮れ)
 * 5) my little wish
 * 6) all my life
 * 7) Hatsuyuki (初雪)
 * 8) kotodama
 * 9) standing for you
 * 10) My pace
 * 11) mother

DVD

 * 1) signal (Music Video)
 * 2) all my life (Music Video)
 * 3) all my life (Music Video Extra ver.)
 * 4) standing for you (Music Video)

DVD2

 * 1) girl next door Live Tour 2012 ～Best Collection～ at shibuya O-EAST (2012.3.30)

Blu-ray

 * 1) signal (Music Video)
 * 2) all my life (Music Video)
 * 3) all my life (Music Video Extra ver.)
 * 4) standing for you (Music Video)
 * 5) girl next door Live Tour 2012 ～Best Collection～ at shibuya O-EAST (2012.3.30)