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Aeyde Radio—Mix 09
In Conversation with KMRU
"Recording the Rhythm of a City"

Words: Whitney Wei
Images: Glauco Canalis
Date: 08.06.2025
Sound artist KMRU's performances emerge from a foundation of intent listening—years spent discerning and collecting the sonic layers embedded in landscapes across continents.

According to Joseph Kamaru (aka KMRU), Berlin is too quiet. "Everyone says [the street] Sonnennalle is very loud," he said, referring to the Neukölln thoroughfare flanked by lively Middle Eastern businesses. "But it's not compared to Nairobi." At the time of our interview, the 28-year-old artist had recently returned from his hometown in Kenya, a place he describes as relentless in sound, where the sheer volume of activity fuses into a long, deafening roar. Booming speakers outfit the storefronts and buses, shopkeepers shout their wares, and pedestrians yell over the din in the varied dialects of the region. Noise pollution to some and urban rhythm to another, KMRU loves the practice of having to listen closely through all the layers. Berlin, however, lacks complexity. A bird cried out above us. "See," he pointed up, "The sound here is so homogenous."

Gracing such institutions as the Barbican and esteemed electronic music showcases such as Atonal, CTM, and Dekmantel, KMRU's performances meld together far-flung field recordings taken from his global travels and, through this, create an altogether unexpected sound environment. Clicking noises from thousands of shrimp in the ocean near Fiji, for instance, may be wedded to a hydrophone recording of crackling ice in his Berlin freezer for a brief twenty minutes. Unsurprisingly, these unusual, organic, and often improvisational worlds are created by an artist who is soft-spoken and placid in manner. He's someone who earnestly tries to restrict any sonic remnants of himself (breaths and heartbeats) in his recordings. This, of course, proves to be a challenge.

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Image: Glauco Canalis
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Image: Glauco Canalis


Whenever KMRU listens to a city, he often thinks of its key note, or the prevailing tone. In Berlin, it's mostly an amalgam of transportation noises. He approached his entry into the Aeyde Radio repertoire much in the same way. The track "9°C" by Whatever the Weather, the pseudonym of fellow field recording artist and friend Loraine James, sets the "old IDM vibe." Its wealth of glitches and texture draws open the curtains on the mix before voyaging into an hour of softly drifting, expansive atmospherics.

Whitney Wei: What is your musical background? Let's start from the beginning (and how you ended up coming to Berlin from Nairobi to study at the Sound Studies and Sonic Arts at the Universität der Künste).

KMRU: I grew up in a sort of musical family. My grandfather was a musician, but we never grew up with him. My mom and my parents used to play tapes of his music a lot. I was in choir as a child. I feel like all my childhood upbringing was surrounded by music. As a kid, my dad bought us a really small piano, and I remember trying to find the batteries to make it work. Music was always very present, but I was not sure if that's what I was going to do. In Nairobi, even the public transport had vibrant music—like hip-hop—with booming sound systems. I had this fascination with playing loud music. Going to school with my brother on the bus, we usually wanted to ride on the loudest buses [painted] with graffiti.

In primary school, I used to sing in the choir—lots of folk songs or arrangements of music from Kenya. In high school, I decided to do music as a subject, and that's when things took shape and I realised music was something that I could study.

After finishing high school, I wanted to do music, so I bought a guitar and started learning how to play. This was also a time when my grandfather's music was becoming apparent, because in high school, we were singing some of his songs as part of our repertoire. During university, I majored in music tech but it ended up being very theory-based. This is when I encountered electronic music or making music on a computer.

In 2017, I came to Berlin for a residency. Before that, I was unsure about the music I was trying to make. It's mostly textures and it's not danceable, but coming here, there were many people who made this kind of music. I also had this tiny iPod and was recording the train with my earphones. A big shift happened when I bought a Zoom recorder [later on] and I noticed there were more sounds around than we realize. I once gave it to my dad to listen to the neighborhood, and I think I was just in awe of the sounds and carrying the playback of my hometown in the recorder.

After the residency, I went back home and that's when I decided to develop KMRU [my current artist project]. In 2019, I came back [to Berlin] for another residency. After COVID happened and I lost my job teaching music production [at the local university in Nairobi], I applied for my masters [at UdK], which brought me to Berlin to study. Things just snowballed—getting an agent, getting shows. It's been about four or five years now [and I graduated last year].

Whitney Wei: Experiment with what exactly?

KMRU: Maybe it was from my academic cycles, but I was struggling so much trying to contextualize my work. Because I had to explain so much, I decided all my projects would be related to home or Kenya or field recordings. It allowed me to  think more about my home in Nairobi and home in Berlin from a time perspective, but then also having the room to relate to things that are happening in both cities. 

Whitney Wei: What do you make of the creative community in Berlin from your time here?

KMRU: I think Berlin offers so much, and I have this connection with the city that allows me to do whatever I want and just experiment a lot. Sometimes you feel like no one cares or judges you. But being here for so long, I realized there's this pattern of how I was inspired in the past that's kind of not changing a lot. I don't think I'd be living here if I was not moving around a lot. I travel so much, coming back to Berlin for just two weeks before leaving again. Berlin allows me to think more about home in Nairobi from a distance, and having the room to just create.

Whitney Wei: You document sound on a handheld recorder to then engage in a discourse of field recording, noise, and sound art. How has listening intently to different cities made you observe them in different ways? What are the distinct sonic differences between Berlin, and say, London or Nairobi? 

KMRU: Coming back from Berlin to Nairobi the first time, being in the subway, going to the train was quieter than how I remembered it. I always try to relate to different cities with what is familiar. I notice tiny things like traffic light sounds—for example, they have weird sounds in Nordic countries compared to others. Different train sounds.

Europe is generally quiet, which is nice, but sometimes I miss the balance in Nairobi. When I went to my childhood neighborhood, it's so loud and intense. Walking to the store in Nairobi, you have to be very hyper-aware—cars coming, people jaywalking everywhere, all sorts of sounds and smells. You're just active.

In Berlin, you can pinpoint where sounds are coming from despite the noise, as opposed to places with so much sound everywhere. Sound is very present here. For example, you can be in the metro and hear very clearly when one annoying person is making a sound. In Nairobi, it's so loud that you wouldn't be able to hear that person. I also think sounds in Nairobi became louder when I moved to Berlin, or maybe I just hear more now.

The language also makes a difference. When I was in London, the train station became louder because I could hear and understand what people were saying—it's like an additional layer of being able to perceive what they're thinking. In Nairobi, it's similar but with different conversations, different dialects.


“I also think sounds in Nairobi became louder when I moved to Berlin, or maybe I just hear more now.”

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Image: Glauco Canalis
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Image: Glauco Canalis

Whitney Wei: What differentiates sound art from traditional music? I'm sure there are many definitions, but how would you describe it? From what I understand you do both, but are there two modes you switch between depending on the environment or is it all melded together?

KMRU: I feel like my musician side and my sound art structure are all connected. With my sound art, it's about the listening element of it—listening as opposed to producing. The production is also an invitation for the listening element in the work itself or in the whole process. Sound art is sometimes very heavily contextualized around something specific, or spaces, or people, or the social happening of things. I try to bring that in a musical way which is also easily listenable to people—seeing, recording sound, but not removing the element of space or the people.

With sound art, there has to be an involvement of context, environment, space, and people—like recording from a very sensitive point of view, trying to record what I'm seeing on a visual level and the sound that occurs. With music, I don't always try to impose how I feel. It's more communal with the listeners. A piece of work can be abstract, which allows you to engage with it emotionally. I think music for me is just so free—allowing me to bring field recordings, bring myself, bring emotion, all in one place.


“With sound art, there has to be an involvement of context, environment, space, and people—like recording from a very sensitive point of view, trying to record what I'm seeing on a visual level.”

Whitney Wei: What has been the most beautiful sound environment you've ever recorded? Do you have a specific memory you could describe to me? And what was the "key note" (the most distinguished sound) within that space? 

KMRU: Maybe the ocean, the deep ocean, on a boat beyond the reef in Fiji with a hydrophone [device] in the water. You hear little clicking sounds of the shrimp's legs everywhere, all around. You can hear fish, like all the air bubbles. It's hard to imagine, but the waves go really deep and you can hear them kind of move.

I also really enjoy being in Nairobi, recording or listening to so much that you hear from conversations or things changing. At night in Nairobi, there are also crickets. Nature is a lot more present there.

Whitney Wei: In early April you played a show at the KW Institute supporting the composer Jessica Ekomane, what is your approach towards preparing for a live performance? 

KMRU: I think there's this idea of sometimes mixing recordings of different places—my kitchen, underground train, whatever—trying to create worlds that wouldn't exist when just field recording in isolation.

When I used to DJ, I was always in the rush of things, making decisions in the moment. I think it's because of my improvisational sort of ways of doing things. [At my show in London] with Loraine [James], we did not know what was going to happen.

It depends on the show. If I play in a city that I know I'm going to play again, I don't play the same set. I have shows that are fully improv, either on my own or with friends. If I'm on tour, I don't improvise a lot. It depends on the duration of the set. It's always changing."

Whitney Wei: Tell me more about the ethos behind your imprint OFNOT.

KMRU: OFNOT embodies this idea of something not being there—very abstract, but almost palpable. This idea of trying to grasp it, but you can't—it's ungraspable. It stemmed from my explorations. I made so many different kinds of work or experiments that just didn't fit a whole context, so I started this project on my own.

For me, OFNOT was like things that I was trying to understand, but maybe they're not supposed to be understood. It's like a label, but not like a traditional music label. It's just a paper where I can do whatever collaboratively on my own or with artists from different mediums, including architecture. I'm around architects a lot, trying to do things beyond just the sonic.

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Tracklist
Mix 09 by KMRU is broadcasting on Aeyde Radio now.

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In Conversation with Billy Bultheel

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