Quadvium - Tetradōm (2025) Hi-Res

Quadvium's debut album, Tetradōm, released on May 30, 2025, through Agonia Records, introduces an instrumental progressive metal-fusion ensemble featuring dual fretless bassists Steve Di Giorgio and Jeroen Paul Thesseling. Joined by drummer Yuma van Eekelen and guitarist/composer Eve, the quartet crafts a complex sonic landscape that intertwines technical proficiency with atmospheric depth. The album's production, led by Eve and co-produced by van Eekelen, was mastered by Dereck Blackburn at Quiethouse Recording, with artwork designed by Travis Smith.

Critics have noted the album's intricate compositions and genre-blending elements. Metal Temple describes tracks like "Moksha" as evolving into "a three-headed monster," highlighting the fusion of heavy Djent accents with animated bass lines influenced by classical and jazz motifs. The review emphasizes the band's ability to transition seamlessly between dense passages and more open, melodic sections, showcasing their technical abilities.

Blabbermouth.net remarks on the album's textured and, at times, ethereal qualities, noting that Di Giorgio and Thesseling work around each other to create a unique soundscape. The publication underscores the rarity of a project centered around dual fretless bassists, highlighting the innovative nature of Quadvium's approach.