- Act I: The First Seal letra
- Act II: Beyond The Black Diamond Gate letra
- Act III: Carnal Delight In The Vortex Of Evil letra
- Act IV: Congressus cum daemone letra
- Act V: The Magic Temple letra
- Act VI: The Sixth Seal letra
- Al Azif letra
- Alone In The Dark letra
- Anphisbena letra
- Battle Cry letra
- Bela Lugosi's Dead letra
- Born In The Grave letra
- Cimmeries letra
- Esteban's Promise letra
- Forgotten Gods letra
- Fronds Of The Ancient Walnut letra
- Immortal Chant letra
- In Hoc Signo Sanguinis letra
- In The Dark I Found The Reflection Of The Hidden Mirrors letra
- In The Raven's Eye letra
- In The Sixth Tower letra
- Maleventum letra
- Many Moons Ago letra
- Muscaria letra
- My Devotion letra
- One Road To Asa Bay letra
- One Road To Asa Bay [Bathory Cover] letra
- Princess Of The Ancient letra
- Scell Lem Duibh letra
- Sepulcro letra
- The Call Of The Wood letra
- The Naked And The Dance letra
- The Oak letra
- The Prophecy letra
- The Red Death letra
- The Serpent's Nemeton letra
- Under The Sign Of The Red Dragon letra
- Unearthed Arcana letra
Orden alfabético (Volver a las letras de Opera IX en orden de album)