Originally Posted by stchasking

The lady is talking about "Head singing". This is the art in which the singer keeps the pallet open so that air can travel out the nose at the same time one sings. The sinuses act as sound boards or Helmholtz oscillators and make the sound amplify and project. Not many young people are taught this. It usually takes private lessons or university level to train a person to head sing. Think of your sinuses as the body on a guitar or violin. It is the same principal.

I have a book on singing I bought at Powell's books in Portland. I have been reading it and applying it to trumpet playing. I'll try to post the title and information on the book.

Also, my mother was a professional singer and taught in our home. She would work on her high school age students to learn how to "head sing" and once she got them there they could really project.

If you do a search on "head singing" on the internet you'll get a pile of information.