Enter the emotional cube: Kakumori return with single 'Seppuku'

Luxembourg post-rock trio Kakumori are inviting listeners into their own minds, with their new single Seppuku.

Following the powerful introduction of their self-titled debut single earlier this year, the three-piece are back with "Seppuku", the second glimpse of their upcoming debut album Coalescence, due later this year. Their first release showcased the band's explosive live energy, but this latest offering dives much deeper into the emotional undercurrent that defines Kakumori's sound.

Despite its striking title, Seppuku isn't about the ancient Japanese ritual itself. Instead, the band uses it as a metaphor for confronting the battles we all fight within ourselves.

Rather than spelling out exactly what those emotions are, Kakumori deliberately leave the door wide open. "We don't want to tell people what to feel. Our goal is simply to create a space where emotions can emerge naturally. Every listener completes the story differently," the band explained.

That philosophy has become something of a defining feature for the Luxembourg instrumental trio. Formed in 2022 by musicians from different musical histories, Kakumori have moulded a sound that blends crushing guitars, cinematic atmospheres and carefully crafted dynamics into something that's less about pigeon-holing their music style, and more about feeling.

As the band themselves explain, "Kakumori was born from the desire to create without boundaries. We all come from heavier musical backgrounds, but this project allows us to follow emotion rather than genre."

More than just a music video

The accompanying video for Seppuku is every bit as immersive as the music itself.

At its centre sits a transparent cube, not as a stage prop, but as a symbolic inner world. Throughout the performance, evolving projection mapping transforms the cube from calm, almost motionless textures into swirling waves of visual chaos before gradually settling once again.

Sometimes the projections reveal the band. Sometimes they hide them. Sometimes they almost consume them entirely. It's a visual journey designed to mirror emotional states rather than narrate a story. "The cube isn't a stage element, it's an inner space. The projections aren't there to illustrate the music, but to make invisible emotions tangible," the band said.

Like the music, the visuals resist easy explanations. Instead, they're an invitation for every viewer to discover their own meaning.

A celebration of Luxembourg's creative community

One of the most impressive aspects of the project isn't just what's on screen, it's who made it happen. Kakumori have assembled an impressive team from Luxembourg's independent creative scene, reinforcing their belief that music becomes stronger through collaboration.

The band's visual identity, including artwork for both the singles and forthcoming Coalescence album, was created by Luxembourg artist Roxanne Flick. The Seppuku video was directed by Livja Pjetra, with stunning projection mapping by Melting Pol (Paul Schumacher), and Sven Gindt was the light technician.  Behind-the-scenes footage came courtesy of Noise in Pixels (Martine Ludwig), while filming took place at Schungfabrik in Tétange, whose support helped bring the ambitious production to life.

Kakumori  have built something distinctly home-grown, showcasing just how much artistic talent exists within Luxembourg's independent scene.

With Seppuku, the band continue to prove they're creating immersive experiences that blur the boundaries between sound, art and emotion. It is available on Spotify, Bandcamp, and of course the YouTube video is above.

When the full album, Coalescence, finally arrives, it promises to be one of the most intriguing Luxembourgish releases of the year.