According to the drawing master, Alexander Cozens, landscape could be codified into three categories: 'Composition', 'Objects' and 'Circumstance'. The last included the seasons, times of day, such as the setting sun, and accidents such as fog, rain or 'the intermixture of the sky, or clouds with the landscape'. Cozens also suggested what emotions each category would evoke in the spectator. The work of his son J.R. Cozens' for his patron William Beckford reflects this belief that landscape can be evocative of particular emotions