NEWS RELEASE
Montreal, QC – December 18, 2025
CEPHEIDAE VARIABLE Shares New Guitar Playthrough “Zephyr of Ouroboros” Off Debut Album “Primordial Reverie”
Out Now! Debut Album “Primordial Reverie” – A Sonic Journey Through Emotion, Evolution, and Imagination
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Photo Credit – Solo artist: Ryan Koepke – Guitar, Bass, Composition, Production
Progressive metal solo project Cepheidae Variable has released a striking new guitar playthrough video for “Zephyr of Ouroboros”, a centerpiece track from the debut album “Primordial Reverie”. The video showcases the intricate musicianship and layered storytelling that define the project, offering fans a closer look at the technical and emotional depth behind the music.
Formed by guitarist and composer Ryan Koepke, Cepheidae Variable began as a personal exploration of musical growth, but quickly evolved into a fully realized artistic vision following his father’s cancer diagnosis. The project became both a creative outlet and a deeply personal journey, reflecting life’s turbulence and resilience.
“Primordial Reverie” is a concept album built entirely through instrumentation, weaving orchestral elements, synths, and guitars into three distinct acts. “Zephyr of Ouroboros” marks the conclusion of the album’s first act, opening with a windy soundscape and orchestral arrangement before diving into odd time signatures, soaring violin‑guitar harmonies, and circular song structures that mirror the eternal cycle of the Ouroboros.
Koepke describes his writing process as “like writing a book,” with each track supporting the next to create a cohesive narrative. The playthrough highlights his ability to fuse technical precision with emotional storytelling, drawing influence from bands such as Dream Theater, Haken, Intervals, Wintersun, and Caligula’s Horse.
Released earlier this year, “Primordial Reverie” is available on all major streaming platforms and on CD. The album moves from symphonic fantasy atmospheres to sci‑fi‑infused progressive metal, balancing melody, chaos, and experimentation. With artwork by renowned collage artist Alex Eckman‑Lawn, the record invites listeners to craft their own imaginative journey through its evolving soundscapes.
Cepheidae Variable plans to continue evolving, with future releases potentially expanding beyond instrumental compositions and even beyond the solo format. For now, the “Zephyr of Ouroboros” playthrough offers fans a glimpse into the heart of the project, a fusion of technical mastery, emotional honesty, and boundless creativity.
Watch the playthrough video for “Zephyr of Ouroboros” via its premiere on MetalInsider HERE.
The digital and CD album (released Nov 7th) “Primordial Reverie” is available at https://cepheidaevariable.com/music
Videos:
“Carving a Dragon” – https://youtu.be/qhp5qvAn2Pk
“The Waiting Storm” – https://youtu.be/ohvtVeir32g
“Chromatic Haven” ft. guest solo from Matt Mills at https://youtu.be/eqmuLrQ4Ysg
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Track Listing:
1. Overture (3:11)
2. Carving a Dragon (4:04)
3. The Waiting Storm (3:13)
4. Zephyr of Ouroboros (9:15)
5. Encounter (5:53)
6. The Conduit (6:03)
7. Chromatic Haven (5:11)
8. Entropic Harvester (10:27)
9. Singularity (11:32)
Album Length: 58:53
For more info: https://cepheidaevariable.com/
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“This was a solid album to listen to. Without vocals, the artist has to work harder to convey his feelings and emotions in his music, and Ryan did that well. Many of the melodies you can hum or sing along with, and that’s a testament to the instrumental album.” – Metal Temple
“Combining symphonic textures, sci-fi ambience, and progressive intricacy, Primordial Reverie explores the balance between chaos and melody, emotion and evolution. Through layers of orchestral arrangements, synths, and guitar-driven storytelling, Ryan invites listeners to experience a sonic voyage through creation, transformation, and reflection.” – Crannk
“It’s easy for instrumental metal, and for progressive metal, to lose their emotional punch in a pile of clever passages. Ryan Koepke does an excellent job maintaining poignancy throughout Primordial Reverie‘s hour-ish run time. This album does feel like a singular journey that takes the listener into different emotional headspaces as the music unfolds.” – Metal Utopia
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