“The R&B slow-burners and bouncy pop jams on 19-year-old Canadian singer Alessia Cara's debut EP feel more like a personal manifesto than a party playlist. On her excellent single "Here," she's an "anti-social pessimist" brooding over a Portishead sample; on the joyous "Seventeen," she provides a savvy update on Janis Ian's "At Seventeen" and Fleetwood Mac's "Landslide." Later on, Four Pink Walls t”