Despite the claim on the cover and title page, included in my heading for bibliographic completeness, this volume is not a second edition of Margot Fassler's well-received study of the twelfth-century Parisian sequence but a reprint of the original 1993 edition to which the author has prefaced a brief introduction principally dedicated to updating the bibliography (pp. xv–xxxii). The reprint itself is valuable because it makes newly available the seminal study of this important repertory. Already in the ninth century, the sequence had become an independent literary and musical genre, sung as part of the mass immediately after the Alleluia, with which it shares musical links. Fassler situates the twelfth-century iteration of the genre in the musical, literary, liturgical and larger cultural context of Paris, with the genre's focal point at the Augustinian abbey of Saint Victor and its chief protagonist Adam of Saint Victor, who also worked at the cathedral of Notre Dame. The new introduction briefly surveys the scholarly literature on the sequence that has appeared in the last two decades, particularly studies of the newer contributions to the genre from the twelfth century and later. This recent research shows that the sequence achieved significant success as a creative outlet for clerics throughout the Latin west during the high Middle Ages. As Fassler puts it, ‘The geographical range of such pieces by the year 1300 extended throughout Europe, from Ireland to Hungary and Iceland to southern Italy, and the number of works in place and still being created, by new religious orders as well as by Crusaders in the Near East, was enormous’ (p. xv). Sequences formed an important part of developing liturgies for the new orders and newly recognised saints, in addition to the established liturgies inherited from the central Middle Ages. Fassler's original study, together with the scholarship that she documents in the new introduction, demonstrates the wealth of the genre as an expression of liturgical piety, as it continued to change and develop throughout the medieval period.