Ruth Ellis Messenger, The Medieval Latin Hymn
“ Gall manuscripts, as Gautier noted, were furnished with musical notation. This is occasionally true of later manuscripts, especially as we enter the closing medieval centuries. The traditional melodies of certain hymns, like the Salve festa dies and Gloria laus et honor are known to-day. Musicologists and students of liturgical music are currently engaged in bringing this music to present-day knowledge. For example, the hymn used in procession before the reading of the Gospel appears in the twelfth and thirteenth centuries as a conductus or conductum which, in turn, is related to the cantio. ”
