“Expedition: Light/Dark” is the musical journey crafted by Sierra — DeathTheorem. This album stands as a testament to her extraordinary range as a musician, blending soaring angelic vocals with crushing gothic metal riffs, sweeping violins, and thunderous cinematic drums.

Every track carries her signature talent: emotional depth, fearless experimentation, and a sound that feels both ethereal and apocalyptic. Expedition: Light/Dark explores the struggle between heaven and hell, strength and vulnerability, creation and destruction — a theme Sierra brought to life with unmatched passion.

This release is shared to honor her work, her imagination, and the legacy she leaves behind for everyone who loved her and everyone who will discover her for the first time. May her music continue to echo, inspire, and light the path for others.

Thank you for listening to her story.
Thank you for keeping her music alive.
— In loving memory of Sierra, “DeathTheorem”

DeathTheorem - Dark Ascension (feat. Sierra)

DeathTheorem - The Devil (feat. Sierra)

DeathTheorem - Scorn (feat. Sierra) [Instrumental]

DeathTheorem  - They Are Gone (feat. Sierra) [Instrumental]

DeathTheorem - Blood (feat. Sierra)

DeathTheorem - Rebirth (feat. Sierra)

DeathTheorem - The End? (feat. Sierra) [Instrumental]

DeathTheorem - Future Bright (feat. Sierra) [Instrumental]

DeathTheorem - BurnBurnBurn (feat. Sierra)

DeathTheorem - Light/Dark (feat. Sierra)

DeathTheorem - The Child (feat. Sierra)

DeathTheorem - Promised Land (feat. Sierra) [Instrumental]

DeathTheorem - De-Consecrated (feat. Sierra)

DeathTheorem - Chaos (feat. Sierra)

DeathTheorem - Life From Ruin (feat. Sierra) [Instrumental]

DeathTheorem - New Beginning (feat. Sierra)

DeathTheorem - Lightfall (feat.  Sierra)

Welcome to the shadowed soundscape of DeathTheorem. This playlist brings together the instrumental and the main track — twin pieces of a single vision. One carries the melody. The other becomes its shadow. Together they form a brief but powerful journey into dark atmospheric metal, emotional storytelling, and the evolving sonic identity of DeathTheorem. Turn up the volume, step into the dark, and experience the full shape of this release.

DeathTheorem - Become the Shadow (feat. Lilith & Sophia) [Explicit]

DeathTheorem - The Nightmare [Instrumental]

Under a Silent Star is a short, original winter release from DeathTheorem, created on impulse and guided by feeling rather than tradition.

Instead of covers, we chose to write three original songs that explore light in darkness, reflection through winter, and the quiet warmth that survives even the longest nights. Blending our usual grungy, goth-metal roots with choir-like vocals, acoustic moments, and hymn-inspired melodies, this album was a chance to try something new while staying true to who we are.

This isn’t a loud Christmas record — it’s a reflective one.
A pause.
A spark.
A silent star overhead.

From the DeathTheorem family to you, we hope these songs bring you warmth, comfort, and a little light wherever you are.

DeathTheorem - I'll Go On (feat. Lilith & Sophia)

DeathTheorem - Silent Magic (feat. Lilith & Sophia)

DeathTheorem - Through the Longest Night (feat. Lilith & Sophia)

DeathTheorem - Iron Tide (feat. Lilith & Sophia) [Reimagined]

DeathTheorem - Rise Again (feat. Lilith)

DeathTheorem - Iron Tide (feat. Sierra) [Original Image]

DeathTheorem - Metal Warrior [Instrumental]

DeathTheorem - StompStompStomp (feat. Lilith)

DeathTheorem - Hair Trigger (feat. Lilith)

DeathTheorem - Dancing Blades (feat. Lilith)

Looking for epic metal? Dark, heavy riffs? Atmospheric symphony rock layered with angelic vocals?
Welcome — you’re in the right place.

DeathTheorem is all about fearless experimentation and pushing genre boundaries. From crushing gothic metal to soaring orchestral passages, every track blends raw emotion with cinematic intensity. Expect powerful riffs, haunting violin lines, explosive drums, and the kind of ethereal vocal work that blurs the line between heaven and fire.

This channel is dedicated to sharing the music, creativity, and legacy of Sierra — the artist behind DeathTheorem. Her sound is bold, otherworldly, and unapologetically unique. Whether you’re here for heavy breakdowns, atmospheric worldbuilding, or emotional metal storytelling, her music will take you on a journey through light and darkness.

Subscribe, explore, and immerse yourself in the sonic world of DeathTheorem.
Epic. Emotional. Eternal.

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