About
Julian David Guillen

Endorsed Artist
Julian is a proudly endorsed metal bass artist, backed by some of the most respected brands in the low-end world. These partnerships highlight his commitment to elite tone, reliability, and professional performance standards.
- Warwick Basses – Premium German-crafted instruments known for their aggressive tone, tight low end, and exceptional build quality, perfectly suited for modern metal.
- Darkglass Electronics – Cutting-edge bass amplification and effects that power Julian’s crushing distorted tones, clarity in complex passages, and mix-cutting presence.
- Thee Crooked Hand – Custom handmade cables and accessories designed for professional touring musicians, ensuring signal integrity and durability on the road.
Together, these endorsements reflect Julian’s status in the professional metal bass community and his relentless pursuit of tone excellence.
The Low End Foundation
Julian’s bass work forms the seismic foundation of every project he joins, combining power, precision, and musicality:
- Thunderous Tone – A massive, articulate bass sound that cuts through even the densest guitar walls, balancing low-end weight with midrange definition.
- Technical Prowess – Advanced fingerstyle and pick techniques, rapid-fire runs, and tight right-hand control that keep extreme tempos clean and controlled.
- Groove Mastery – Deep rhythmic awareness, locking in with drummers to create devastating grooves, breakdowns, and headbang-inducing riffs.
- Stage Presence – Commanding live performances, high energy, and intensity that match the aggression of the music while maintaining precision.
This combination makes Julian not just a bassist, but the core rhythmic and tonal anchor of any metal lineup.
Bands & Collaborations
Across his career, Julian has been an integral force in a range of heavy projects, consistently bringing his signature low-end assault:
- Progressive Metal – Projects that push technical and compositional boundaries, where Julian navigates odd meters, complex harmonies, and intricate arrangements.
- Brutal Death Metal – Bands built on relentless speed and crushing breakdowns, where his tone and precision keep the chaos grounded.
- Melodic Metal – Acts that fuse aggression with melody, allowing Julian to blend supportive low-end with tasteful melodic lines.
- Underground Extreme Metal – Collaborations with rising and cult artists, contributing bass lines that enhance intensity while remaining musical.
Whether in the spotlight or as the silent backbone, Julian’s playing elevates every project he joins.
Musical Approach
Julian’s musical philosophy centers on serving the song while pushing the limits of what metal bass can be.
- Precision Attack
Lightning-fast runs and intricate riffs executed with surgical accuracy, ensuring clarity even at extreme tempos.
- Harmonic Knowledge
A strong understanding of harmony and chord progressions, allowing him to support and enhance guitar work rather than simply doubling it.
Beyond the Stage
Outside of touring and recording, Julian remains deeply active in the metal and rock community:
- Session Work – Providing bass tracks for metal and rock productions, from full albums to singles and remote recording sessions.
- Education – Teaching bass technique, rhythm, and music theory, helping players develop both technical skill and musical understanding.
- Gear Reviews & Demos – Showcasing basses, amps, pedals, and accessories, with a focus on real-world metal applications and tone shaping.
- Global Collaborations – Working with underground and independent metal artists worldwide, contributing bass performances and creative input.
Through these activities, Julian continues to influence the next generation of heavy bass players while expanding his own sonic footprint.