1. 2015
2. Enabling ministers and musicians to develop music in parish worship : : addressing the shortfall in ministerial support and training in the Church of England

   Awdur: Thomas, S., Ion 2015

   Goruchwylydd: Harper, J. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Meistr mewn Athroniaeth

3. In nomine Iesu omne genu flectatur: the late medieval mass and office of the holy name of Jesus; sources, development and practice

   Awdur: Aveling, J., Ion 2015

   Goruchwylydd: Harper, J. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

4. New Voice : the patterns and provisions for girl choristers in the English cathedral choirs

   Awdur: Mackey, A., Ion 2015

   Goruchwylydd: Collins, C. (Goruchwylydd) & Harper, J. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

5. 2010
6. Aspects of Koinonia: Developing an ecclesiological approach to music in contemporary Christian worship

   Awdur: Galbraith, D., Ion 2010

   Goruchwylydd: Harper, J. (Goruchwylydd)

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth