Alvvays never intended to take five years to finish their third album, the nervy joyride that is the compulsively lovable Blue Rev. In fact, the band began writing and cutting its first bits soon after releasing 2017’s Antisocialites. They toured more than expected, a surefire interruption for a band that doesn’t write on the road. A watchful thief then broke into singer Molly Rankin’s apartment and swiped a recorder full of demos, one day before a basement flood nearly ruined all the band’s gear. They subsequently lost a rhythm section and, due to border closures, couldn’t rehearse for months with their masterful new one, drummer Sheridan Riley and bassist Abbey Blackwell. Blue Rev doesn’t simply reassert what’s always been great about Alvvays but instead reimagines it. They have, in part and sum, never been better.