A collection of liturgical materials, containing computational texts and tables, a breviary with incipits of the spoken and chanted texts for the Mass for the principal feast days of Saints, a gradual with neumes and a sacramentary. Illustrated with several miniatures, executed in the monastery of St. Gall around 850.
About Matthew Frederes
Mr. Frederes is a software engineer, pilot, served as an organist for 31 years, and directed small parish choirs/scholas for 22 years. He and his wife have 12 children. —(Read full biography).
