Blue Heron's debut CD offers an entrancing selection of music by the greatest composer of the 15th century, Guillaume Du Fay (c.1397-1474). The program includes three isorhythmic motets (Apostolo glorioso, Rite majorem Jacobum canamus, and Ecclesie militantis), the glorious, large-scale Sanctus Papale in its first recording in three decades, two hymns with alternatim plainchant verses, and a generous sampling of secular songs. While the disc is mostly devoted to the music of Du Fay, it also includes a song by Du Fay's contemporary Hugo de Lantins (Mon doulx espoir), and a marvelous motet-chanson by his friend and colleague of the next generation, Johannes Ockeghem (Permanent vierge). The music was recorded in September 2006 at the Church of the Redeemer in Chestnut Hill.