Dear Gro,
Thank you for your email. I don't know any in China to teach you overtone singing in 2 weeks . Nevertheless, I can send you the link where you can watch my film on overtone singing . This film showed the basic techniques of how to learn the throat singing.
Then you can go to my blog :
http://tranquanghaisworld.blogspot.com where I have posted many articles on overtone singing in English (this blog is mainly in English)
then, you can watch my 2 clips on youtube.com
http://www.youtube.com/watch?v=pc9kGRvlpd0&feature=channel_page
http://www.youtube.com/watch?v=65va3GNCKvM&feature=channel_page
http://www.youtube.com/watch?v=UpX0QsJeDr0&feature=channel_page
This is the link you can find my film "le chant des harmoniques"

If you have any question, you can write to me .
wishing you all the best,
Tran Quang Hai
http://www.canal-u.tv/themes__1/sciences_fondamentales/physique/ondes/le_chant_des_harmoniques_1989

Dear Gro,
this is the link of my film "Le Chant des Harmoniques".
best,
tran quang hai

http://www.canalu.tv/canalu/producteurs/science_en_cours/dossier_programmes/l_imagerie_scientifique/sciences_humaines_et_histoire_des_sciences/le_chant_des_harmoniques_1989

http://www.canalu.tv/canalu/producteurs/science_en_cours/
dossier_programmes/l_imagerie_scientifique/sciences_humaines_
et_histoire_des_sciences/le_chant_des_harmoniques_1989

This link is too long.I have to cut it and go to the next line.
the best way is that you can write to me at tranquanghai@gmail.com
in order to give you more details.
Best,
Tran Quang Hai

hej skat!

Elsker dig! jubii. Hurra for overtones og os og alle