Thanks for the link, Bean. It figures they're Norske.

I made a similar list/chart for my masters thesis for the American vowels I've encountered teaching and composing for vocalists. The object was to refine sung vowel sounds as they often obfuscate understanding of the words for the listener. One of the issues approached was that the muscle tension in a vocalists jaw increases dramatically with specific vowels, and to avoid this, vowel pronunciation started "rounding off" (ie. begin sound alike) and lose the minor distinctions that languages (like Norwegian's vowels) have developed.

The only way I could represent the sounds acurately for the student was to listen to the individual speak and find their representative word with the desired sound. This goes a lot toward personalizing success and was an interesting study in dialects and pronunciation. The final *product, however, had to be written with words as I pronounce them, of course.