Sadly the many Proper Hymns written in honour of St. James are not used in the Roman Office. Below can be found a small selection of the Hymns used in former times.
HYMN : TE NOSTRA LÆTIS LAUDIBUS
Matins and Lauds Hymn for St. James the Apostle
HYMN : EXSULTET CÆLUM LAUDIBUS
Hymn for St. James the Apostle, from the Brev. Pragense