Music for the boss.

[Moospuh]

So, a boss Im working on for modified Mummys mask is a Female Ex Cleric of gozreh who found a sentient sword, upon finding of it, it took control of her, wrapping around her body and distorting her world view. the sword gives her magical powers (Casts spells like a magus) and controls every part of her being. Every so often she does break free of the hold, but only to be taken back over in a few seconds. I want musical accompaniment with it, but what is your advice.
I dont want lyrical songs, instrumental only please. Best i think is Nightmare night Instrumental By Wooden Toaster.

[The Inheritor]

I personally like to use music scores. Take a peek at the Mummys for example.

[RoboPorthos]

"Laser Cannon Deth Sentence" by Dethklok. Lyrics? Sure, but odds are you can't understand them so I'd call it a net gain.

[chbgraphicarts]

Giuseppe Verdi's Dies Irae

Sequentia (the reprisal of Dies Irae) from Mozart's Requiem

Also, practically ANYTHING by E.S. Posthumous.

[Marc Radle]

Springsteen?

[DungeonmasterCal]

Anything "heroic" sounding by 2 Steps from Hell.

[Hubaris]

Music Souls Anyone? [Dark Souls I/II Spoilers Below]

Spoiler:

Gwyn, Lord of Cinder Quite sad IMO

Artorias, the Abysswalker Character in game is possessed and corrupted by The Dark

Sir Alonne Definitely sounds like struggle and an intense fight

Old Dragonslayer Pure energy

Darklurker Sounds creepy ritual-y

Basically you can't go wrong here. I could keep going with links but... yeah.

[I'm Hiding In Your Closet]

Try this, or this!

[Lune]

I would like to direct you to this thread for inspiration.

[HyperMissingno]

Okay, let's see. The Elder Princess Shroob Battle theme might work if you're going for the tragedy aspect. If you want something more creepy/possession sounding then Hartmann's Youkai Girl might work, or a remix of it. Is there a specific feeling you want to evoke from this?