Matt Kwasniewski-Kelvin, the guitarist and co-founding member of the British experimental rock band Black Midi, has died aged 26, prompting an outpouring of tributes across the music world. News of his death was confirmed in a family statement shared via the bandâs label, Rough Trade, with outlets including The Guardian and Pitchfork reporting the announcement.
For fans of the south London âWindmillâ scene and the wider wave of boundary-pushing UK guitar music, Kwasniewski-Kelvinâs name is inseparable from Black Midiâs early electricity: the sense that anything could happen in a song, and often did. His playing helped shape the bandâs reputation for sharp turns, abrasive textures, and sudden moments of strange beautyâmusic that felt live even on record.
Black Midi formed in 2017, bringing together musicians who met as students at the BRIT School in London. Kwasniewski-Kelvin emerged quickly as a defining presenceârestless, inventive, and unafraid of noiseâat a time when the group were becoming known for ferocious live shows and a sound that didnât sit neatly in any one genre.
The bandâs debut album, Schlagenheim (2019), turned underground hype into wider recognition. Critics praised its intensity and imagination, and it became a calling card for a new generation of experimental rock acts. The record helped push Black Midi into international conversation while reinforcing the London sceneâs reputation as a hotbed of musical experimentation.
In 2021, Kwasniewski-Kelvin stepped away from Black Midi to focus on his mental health, and did not appear on the bandâs later releases. His absence marked a turning point for the group, but his influence on their identity and early sound remained unmistakable.
Those who saw Black Midi during their earliest run often talk about the same thing: the sense of risk. Songs could lurch from tight riffs into abstract noise; rhythms could collapse and reform; guitars could sound like machinery, sirens, or something unexpectedly fragile. In that volatile chemistry, Kwasniewski-Kelvinâs approach matteredânot just for technique, but for the willingness to push a sound until it cracked open into something new.
As the news spread, tributes began to circulate from fans, musicians, and critics, reflecting how widely his work travelled beyond the bandâs core audience. Irish music magazine Hot Press described him as a singular figure whose legacy will continue to shape experimental guitar music for years to come.
It is an especially painful loss because Kwasniewski-Kelvinâs story sits at the intersection of brilliance and vulnerabilityâan artist recognised early, and a young man facing a private struggle that many people understand all too well. If you or someone you know is struggling, support is available. In the UK and Ireland, help can be found through organisations such as Samaritans and Mind.
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