The versus Rex caeli – another look at the so-called archaic sequence
Nancy Phillips|Michel Huglo
The changes in the chant and liturgy which took place northern Europe during eighth ninth centuries affected not only those portions of rite based on biblical texts, but also included modifications using non-biblical texts. These texts were generally form poetry or rhythmic prose – such as hymns office, processional chants for Sundays feast days between Terce Mass, (in century) sequence following alleluia mass.
Journal of the Plainsong & Mediaeval Music Society