Landscape and the spiritual elements of journeying inform much of the music of John Metcalf, particularly the hills and valleys of his native Wales, both literally and when reinterpreted by painters. Paths of Song is a continuous piece for string quartet in five sections, each taken at a walking pace. As with Mapping Wales and Septet, also recorded here, the music is lyrical, melodic, good-natured and benign. That might suggest it's all charm without challenge, but it would be a mistake to assume that. There is some really fine, accessible writing here.