McNarland’s “Mr. 5 Minutes,” about a partner’s premature ejaculation, rivaled Alanis Morissette’s “You Oughta Know” for its rage and sexual frankness. But the Vancouver singer has now traded anger for motherhood. Her forthcoming album, featuring tender ballads like “Beautiful Blue” and “When You Come Down,” is more in keeping with Sarahs Harmer and McLachlan and the mellower Alanis. However, McNarland still packs an emotional wallop.