The fast-rising bonkers Montreal rock duo Angine de Poitrine , whose popularity soared after a live KEXP session, have inked an exclusive publishing deal with independent music publisher Third Side Music , which will represent their catalog worldwide, working closely with the band and their management, Spectacles Bonzaï. The duo — brothers Khn de Poitrine and Klek de Poitrine — join a roster that includes Sofi Tukker, Unknown Mortal Orchestra, Sky Ferreira, Courtney Barnett, Kurt Vile, Hermanos Gutiérrez, Wolf Parade, Waxahatchee, and others. “We’re so excited to be part of the Angine de Poitrine team and get to work with the band and the Spectacles Bonzaï crew,” said Jeff Waye, Third Side co-founder and COO.…