I have had some questions on pronunciation for the Welsh names and words. This is somewhat difficult to put in the book so I have created a link and pronunciations as best I could.
http://britannia.com/celtic/wales/language.html
Cymru (Wales) kum-ree
Tanwen (Fire blessed) tahn-wen (Fire’s daughter)
Rhiannon (The White Mare Goddess) rhee-ahn-on
Arianrhod (Moon Goddess) ah-ree-ahn-rhod
Arallfyd (Otherworld) ar-ash-vuhd
Myrddin (Merlin) muhr-thin (the th is pronounced th as in that)
Nimue (Lady of the lake) nim-ee-eh
Caledfwlch (Excalibur) caled-voolch (ch pronounced as in German ach)
Briallu (Primrose) bree-ah-shee (Earth’s daughter)
Alaw (melodious river) allow (Water’s daughter)
Awela (Breeze) ah-well-ah (Air’s daughter)