Built around the evocative vocals and songwriting of Brad Barr and the sturdy and studious drumming of his brother Andrew, Montreal-based Americana/folk-rock quartet the Barr Brothers were formed in 2006 after the dissolution of the siblings’ avant-rock trio the Slip. Originally based out of Boston, Massachusetts, the Barrs spent the bulk of the 1990s touring with the Slip. Upon relocating to Montreal, the duo hooked up with classically trained harpist Sarah Page and multi-instrumentalist Andres Vial and thus began the Barr Brothers. The newly minted quartet’s eponymous debut album was issued in 2011 via Secret City Records, and elicited positive reviews which helped bring the group to national attention, including an appearance on Late Night with David Letterman. The band’s new album, Sleeping Operator, arrived in October 2014. They have performed at the Newport Folk Festival, with Calexico, and will be touring with My Morning Jacket this spring.