Answer:
River
Step-by-step explanation:
A psalter can be regarded as
volume which encompass Book of Psalms along with devotional materials. These devotional materials are ; liturgical calendar as well as litany of the Saints. psalters were been owned by wealthy lay people until the breaking of book of hours. The text in psalter is a Biblical text, while the arrangements is in liturgical form. It should be noted that the stages of formation of the Psalter may be compared to a river.