Jacques Boyvin published his first book of organ music in 1690, and this was followed by its reprint and supplement in 1700 by Christophe Ballard, ‘seul imprimeur du Roy’. Together, we have a rich collection of organ versets suitable as alternatim pieces for the canticles Magnificat and Benedictus. They also make charming suites of music that are perfect for church services and concerts. This Lyrebird Music publication is the first critical edition of Boyvin’s music in over 40 years and marks the fifth and final Lyrebird book containing music by seventeenth- and eighteenth-century Rouennais composers. The preface discusses Boyvin’s life and music and re-evaluates his prefaces, which include his thoughts on the performance and registration. Additional notes examine the performance of notes inégales and discuss fingering and articulation.