Winterreise is a song cycle by Franz Schubert based on a set of poems by Wilhelm Müller. It is a song about the tragedy of a broken heart; after the narrator's love leaves him for someone else, he leaves the town and journeys on through the winter.
Briefly, the cold blue in this album cover design evokes both the loneliness of the heart and the heartlessness of winter, both of which are important themes in the work.