Today I tried out something I do a few times a year: take a deep breath and see how long I can sing. Well, this time I just tried to sing for one minute, not as long as possible. The best technique to use for this is either khöömei or sygyt as it automatically constricts the throat and inhibits the airflow.
It is trivial, I know, but it is a good exercise for the lungs, diaphragm and the entire respiratory system. The other challenge is to make some musical sense. The throat singing is far from perfect (some of the overtones should not be there) but I decided to share it anyway as an example of some of the things I practise.