Spiral code is the second album released on An’archives by the Japanese trio archeus, after 2023’s Kusōzu: Nine Death Stages, and their seventh release altogether. It’s also the most staggering evidence yet of the single-minded pursuit of group-sound explored by Keiko Higuchi (voice, drums, percussion, trombone), Shizuo Uchida (4 strings), and TOMO (hurdy gurdy). For two tracks, “awakening, beyond recurrence” and “where points and lines intersect”, they’re joined by Kiyotaka Moriuchi, an improviser who’s played with the likes of Shoko Numao and Ensemble Shippolly, on percussion and darbuka (a goblet-shaped drum played widely across South East Asia).
Always able to scour magic from both their relationships with their instruments, and their non-idiomatic interplay, on spiral code they’ve widened their net further; the results oscillate from humid and claustrophobic blocks of noise to rivulets of tone coursing across post-volcanic landscapes, and on into simple gestures suspended in arctic space. Spiral code was recorded in a single day, on March 20 th 2025, at a studio in Koenji, Tokyo, the morning session with the original trio, and afternoon and evening session with Moriuchi – the first time archeus have played with a guest musician.
When asked about the music archeus makes together, TOMO is quick to isolate the singular characteristics of their collaboration: “we are trying to explore some new, unknown musical vocabulary every time we play. And what we are trying to achieve from every session is something unique, an interesting chemistry or, I should say, alchemical reaction among the three of us.” You can certainly hear that alchemy in the dynamic arc of their performances, the way they seem to be able to switch on a dime and push the music into unexpected terrain, all while sounding intimately archeus. “We have been playing for many years,” TOMO continues, “so I think that among three of us, we can telepathically sense, feel and understand what each of us is trying to express while we are playing.” It’s telling that guest musician Moriuchi fits so effortlessly into the archeus soundworld, able to hitch a ride on the intimate telepathy of Higuchi, Shizuo and TOMO; “I think he gave us some fresh air to our music,” the latter smiles. But that telepathy extends, even, to the name of the album itself, with all members pointing toward spiral imagery when naming the title track, whether TOMO’s evocation of Kundalini serpent imagery and Caduceus, to the spiral shape of DNA, what TOMO calls “the code of life.” It’s certainly deeply entwined music: spiral code is a helix of sound, a cylindrical coiling of possibility.
