A lyrical suite of seven chapters for mixed choir a cappella, Jesper Koch?s Choirbook is a meditation on nature, complex and yet simple, communicating openly with the listener. Sincerity and a sense of timelessness pervade this large-scale work based on the poetry of Frank Kjørup, highly accessible and deeply immersed in the mysteries of its own beauty. Danish composer Jesper Koch (b. 1967) wrote very little vocal music until he reached his mid-40?s, primarily focusing on music for symphony orchestra. But in 2012, something unexpected happened. Jesper Koch suddenly felt a strong urge to write for the human voice and go back to the basic principles of melody and tonality, after having written rather complex orchestral music. The music in the vocal project Choirbook is melodic, concise and transparent: ?When I write purely melodically, nothing must stand in the way of clarity. So everything superfluous is stripped away?, says Jesper Koch.