Thoor (letter) pronounciation

In the alphabet and pronunciation section the 21st letter (thoor) I was confused how to pronounce the letter's name and sound, if the "?" is the way to pronounce as it says then I'm fine with that now (looked it up) but the word, lore and the "u in moon" confused me. Also I would assume I pronounce the name of the letter "TH-OO-R"(like thor but with oo instead of just a o sound) but the sound clip provided sounds like "TH-OO-T" which one is correct and if its thoot why is it spelled with a r?

(sure you know where it is but this is the link to the page I'm on https://www.thuum.org/learn/grammar/alphabet.php )

Category: General