@charlie:
Thanks for your in put :)

This is my own personal reflection on your comment on how people usually sing kanaka these days. The thing is that it is easier to put wieght on a word like "heard" than "thought" when you singing. At least if you are going to sing it loud.
In the song you pull on the both "heard" (or thought and heard) that is the words that you will sing strong (I dont know the english word) and thought easy gets just "thou" if your going to sing it as a "strong" word and if it is sung loud and strong the word probably would not been heard.

Just my reflection on the matter :D