Angine de Poitrine is a Canadian rock duo formed in Saguenay, Quebec, in 2019. The group consists of two anonymous members performing under the pseudonyms Khn de Poitrine (guitar and bass) and Klek de Poitrine (drums). Their music has been described as incorporating elements of math rock and experimental rock, with compositions that make use of complex and often microtonal structures. The duo is also known for an unconventional visual presentation, performing in oversized papier-mâché masks and black-and-white polka-dotted costumes.

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