Proto-Galiscan/Sound Change

Consonants
Notes:
 * 1 At the beginning of a word
 * 2 At the end of a word
 * 3 If no vowel follows

Vowels
Notes:
 * 1 Between consonants, or at the end of a word after a consonant.
 * 2 At the beginning of a word, followed by a consonant.