All songs of Empty old City
- Animalism to 25 Hito no Kodomo Tachi [Animalism and 25 Children]
- Astronomy
- Astronomy (English Ver.)
- Buffer
- Buffer (English Ver.)
- Chronicle A
- Chronicle A (English Ver.)
- Cipher
- Daisy Crown
- Death Designer
- Death Designer (English Ver.)
- Enigma
- Gemini
- Ghost Keikoku wo Utau [Ghost sings a warning]
- Ghost Keikoku wo Utau (English Ver.) [Ghost sings a warning (English Ver.)]
- Hitsujikai no Gourei [Command of the Shepherd]
- Inside Story
- Lazy and Loose
- Millennia no Suisou [Lake of millennia]
- Moonian
- Nostagram
- Offline Saga (feat. suisoh)
- Pulse in Flora
- Rhapsody
- Twilight Serenade
- Urban Cruise