> Just how high should one be able to hum? Some of my > students can hum all the > notes which they can sing, others can't go higher in > a hum than A5 but can > carry on to C6 in an open voice.
My teacher says that you should be able to hum all the way to the near-top of your register (since I can squeak out F's, I take my hums to a high D). This involves stretching your mouth (like you're humming a big tall "oh" inside) to reach the notes.
She has always told me that a voice that cannot hum up into the top of its range is unhealthy in some way (tired, training not quite lined up, speech voice strain, other technical issues).
I have discovered that there are two different hums -- one is a relaxed-jaw (i.e., closed-mouth) hum that vibrates in the bone structure of the face, and the higher one, which stretches the jaw open (lips still sealed) and buzzes in the lips and front of the mouth. Maybe your student is only doing the first kind, which cannot be taken up high without hiking the larynx up (in my fumbling experience).
The second type of hum is almost like you have put a huge gumball or something in your mouth, which suddenly expanded vertically, so there is a high tall thing in your mouth and you are opening your jaw to accomodate it, while still keeping your lips sealed. I wish I could put a video clip up! I'm totally inspired by Tako's cool web page to find out how to put up demonstrations of all these concepts of mine.
Isabelle B.
===== Isabelle Bracamonte San Francisco, CA ibracamonte@y...
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