The Canadian music series on Another Timbre is a thing of multifarious wonders. Ten portrait CDs championing music by Linda Catlin Smith, Martin Arnold, Isaiah Ceccarelli, Christopher Mayo and several others. The scope, the focus — it’s all compelling. No blunt conclusions are drawn about what Canadianness might mean in music, but I’m intrigued by Martin Arnold’s suggestion that it might have something to do with “slack” — by which he means a loose relationship to tradition, an open space upon which to make things new. Many of the discs in the series deserve mention here but Cassandra Miller’s music has knocked me sideways. Bold, kind-hearted, wistful, brave, simple, sophisticated… her string quartet About Bach is miraculously beautiful, with a bright, lonely violin drifting resolutely above the most gorgeous shapeshifting chorales.