"Jerusalem" is William Blake's best-known and best-loved poem. Also popular, though not quite as well-known, are "The Lamb" and "The Tiger." The first is a Song of Innocence, the second a Song of Experience. Acquaintance with the other forty-three poems in the cycle reveals them to be gems of equal brilliance. Blake is reported to have sung his songs at domestic gatherings, adapting well-known ballad or hymn tunes, or perhaps popular songs he may have encountered in Vauxhall Gardens. He was not very keen on "art" music. Many composers have set individual poems. Here, however, are settings of...