The magnificent maelstrom of Montreal collective Godspeed You! Black Emperor draws on drone, post-rock, and chamber music. It may seem facile to compare their output to movie scores, but as with Mogwai and Explosions in the Sky, they make it unavoidable (all three have composed for films or appeared on soundtracks). Godspeed's tracks range from six to 29 minutes, and their arrangements call on dramatic tension and cathartic release, with every one conjuring crazy visions. Compared to the Canadians, Portland guitarist and lap steel player Marisa Anderson is a quieter, subtler proposition, but no less virtuosic in her skills. by Kathy Fennessy