Sean Scully at the Whitworth Art Gallery

Since the 1970s, Scully's work has explored the tensions between European and American conceptions of art. This you could interpret as squaring circles (appropriately enough for so geometric an artist): reconciling formal purity with exuberant colour, hard edges with blurred borders, flat surfaces with layered textures. A reconciling impulse is clearly seen in his less well-known works on paper, in pastels and in watercolors. The stacked, layered, geometric shapes are called tiles, chessboards and stripes and are rendered in soft, smoky pastels and watercolors -- sometimes in dark, Rothko-like greens, sometimes in burnt orange and monochrome.