Canadian five-piece Alvvays managed to impress with their first self-recorded demos, getting themselves signed to Polyvinyl Records and hopping onto the musical merry-go-round in hopes of grabbing that same great white northern brass ring that has so enriched Barenaked Ladies and the Tragically Hip. Frontwoman Molly Rankin grew up watching her dad fiddle with the famed Celtic folk group the Rankin Family. After forming Alvvays, a decidedly more rocking (but still as much traditional) ensemble, she booked a South by Southwest showcase that led to their Polyvinyl deal and a self-titled debut album.

The first blip they made on the national radar was a single from that record, “Archie, Marry Me,” but their sophomore follow-up full-length from a few months months back, Antisocialites, seems a much more polished, mature, and cohesive effort, despite the lack (so far) of any standout singles or notable chart activity. You may want to give the up-and-coming jangle-pop band a shot by catching them April 18 at the Music Box, with tix running a mere 18 to 20 bucks. For that, you also get an opening set from rocker girl Frankie Rose, a founding member of Dum Dum Girls with a new solo album to sell you, Cage Tropical.