FORMER Henry Cow guitarist Fred Frith presents an unusual musical spectacle. He plays guitar flat on his lap, either patting and rubbing its strings with what looks like a clothes brush and an empty tuna tin or with a bow or a towel laid along its length.

He’s accompanied by Lotte Anker from Copenhagen, who plays caustic notes on a rasping soprano saxophone, and drummer Samuel Duhsler. He creates tinny sounds on his cymbals or what resembles the griddle of a barbecue and drums a long chain that he has dropped onto his snares.

The sounds seethe in front of Heike Liss’s fluid, improvised visuals of daybreak, dissolving mists and snowstorms at sea.