SIGMA HARMONICS Original Soundtrack
- One More Tomorrow
- Rippling Dream
- The Remains of Time
- Black Guidance
- Flowing Time
- Wandering the Interval
- Gentle Timbre
- Approaching the Abyss
- Hope Given "Dance of the Dog's Howl"
- Seal Complete
- Twisted Nightmare
- A Man Pierced by Evil
- Bright Invitation "Dance of the Iron Ox"
- Possession
- Corroding Darkness
- Spun Time
- Heartening "Dance of the Cornered Rat"
- Expressing "Dance of the Great Snake"
- Regret Personified
- The Summoned Three Claws
- Eternity's End "Dance of the Wild Boar"
- Peace Unmade "Dance of the Swan"
- Invasion "Dance of the Youthful Horse"
- Beginning From the Nightmare "Dance of the Sheep God"
- Slowly Progressing "Dance of the Orangutan"
- The Whole World "Dance of the Beast King"
- It May Be Bright "Dance of the Dragon God"
- The Hope Beyond Fear
- Watcher of the Time of Disasters
- The Performance "Demon Sonata"
- Tears of Sorrow
- Words Were Shaken
- Guided to the Finale "Dance of the Moon Spirit"
- The Screams of the Time Cycle
- Who Is He Anyway
- Visiting Again Soon
The Alliance Alive (Soundtrack)
- Main Theme ~Understanding~
- The Rainy City Svalna
- Council of War
- Rain Realm
- Guild
- Sealed Museum
- Premonition
- Divided World
- Lost Light
- Living Forest
- Disturbance
- Good Night
- The Noble and the Butler (von Ayane Hamauzu)
- Clockwork City Gearsrock
- Burning Realm
- Junkyard
- Battle Encounter
- Victory
- Blue Oasis
- Determination
- Pandemonium
- Combined Destiny
- Humans and Daemons
- Prison Street
- Caged Realm
- Catacombs
- Tower of Judgment
- Force Gear Battle
- Departure
- Ignition
- Grand Victory
- Hot Spring (von Ayane Hamauzu)
- Penguin
- Snow Realm
- Defense Fortress
- Hakurei Castle
- Council Hall
- Battle Game
- Annihilation
- Banquet
- Flight
- Crystal World
- Sky City Eshtern
- Cornudraco, Valley of Dragons
- Air Battle
- Rainbow Pillar
- Demon Den
- Battle with the Four Villains
- Heart of Forgiveness
- Area 18
- New Order Declaration
- Black Dragon
- It's So Blue
- Alliance Alive
- Order of the Stone
The Legend of Legacy Original Soundtrack
- Main Theme - The Legacy -
- Avalon
- Initium
- Ruins in the Forest
- Double Dimension Battle
- Victory
- A Shrine Untouched by Man
- Guardian
- Defeat
- Singing Rocks
- Treasures
- Unknown Truth
- Departure
- Hidden Forest
- Melody of Shadow
- Good Night
- Dreams
- Deserted Village
- A Great Calling (von Mina)
- The Spirit Caller
- Fight Against the Unknown
- Dungeon in the Desert
- The Shipwood
- Recapture
- Battle With the Dragon
- Courage
- The Bottomless Depression
- A Proof of Existence
- Sacred Mountain
- City of Solitude
- Battle With the Heavenly General
- The Star Graal
- Forgotten Light
- Ending Theme - Travelers’ Song (von Mina)
- Double Dimension Battle
