This is a silly Saturday feature, because it's called Songs on Saturday, and it's not all about songs. It's all about soundtracks, and this week's soundtrack is Bjork's for Drawing Restraint 9, Matthew Barney's meditation on shintoism. It's Bjork at her most abstract, and her most challenging. There are few original soundtracks this diverse, and what it represents musically is years ahead of just about any other film soundtrack you'll hear. A few tasters below, none of which come even close to giving a true impression of the spectacular scope of Bjork's work as composer on this, her husband's film in which she also stars.