Predominantly hushed and serene, "Plainsongs for Peace and Light" proved to be Jonathan Harvey's final work. It sees Harvey reexamining the very fundamentals of his craft, superimposing lines of plainsong, relishing the simple clash of note against note, and creating rich, otherworldly sonorities through an elaborate use of canon. Harvey was a composer who always embraced and sought out the very latest in musical technologies but the simplicity of the a cappella choir became something of a constant to which he returned throughout his life. The piece is for mixed voices of SATB in 16 parts.