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Posts Tagged ‘Larynx’

Messa di voce kuvaThe vocal folds are amazing in their capability of reacting to emotions and the finest feelings. There are mechanoreceptors in the tissue of the vocal folds and one would never really guess how much intricate emotional changes can affect the status of our vocal mechanism. Neither do we need to, in fact, I mean, scientifically. Let the scientists measure those. Enough for us to understand that the larynx is really sensitive.

What we do need to understand as singers, is that the vocal folds can behave in various ways and that we should be able to control them consciously to help our voices stay in good shape. I´m talking about the mechanism that determines if the folds are vibrating with thick or thin mass. The way to protect your voice from excessive workload is to be able to vibrate with thin mass. Only the edges of the folds come into contact. The sound is what we also call head voice or head register. This calls for gentle closure of the cords, even airflow and regulated air pressure. If you can do it, great, you are safe! Because if you no longer can sing softly, you may have a problem. The cords may have become too thick and are perhaps swollen; there might even be some tissue damage (the much feared nodules).

So, always cultivate your ability to sing pianissimo! Evenly, gently, smoothly – both low and high range, but especially in the middle range. If you have a nice mixed voice in the middle range, you also have vocal protection.

This doesn´t mean you should always sing softly – naturally you also need your fortissimo at times. The best exercise for this control is always the messa di voce – the old Italian concept of starting pianissimo and swelling it to full forte, and then back again to piano. Practice this and you gain great control for both your vocal folds and your breathing mechanism.

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What is laryngeal tilt? Many singers do it  unconsciously because it is sort of built-in in classical vocal technique. What happens when you tilt? What is actually tilted? Can you lose this ability?

Let´s try to answer some of these questions.

The larynx consists of three main cartilages: the thyroid, the cricoid and the arytenoids. The thyroid cartilage sits on top of the cricoid and they are connected to each other with a paired muscle, the cricothyroid. When the cricothyroid muscles contract they pull the thyroid a little forward and down thereby tilting the thyroid. While the arytenoids also rotate towards each other closing the glottic chink, the vocal cords close while stretching and lengthening at the same time. This means we can sing different pitches; the more the folds stretch, the higher the pitch. IF there is no tilt we can still sing higher pitches but not as easily and the sound retains a speechlike quality. With thyroid tilt we can really SING!

Thyroid tilt is therefore very important. How can it be taught? Usually it happens quite automatically and classical teachers ask for it from the very beginning when they show and have students imitate head and mixed voice. This terminology is confusing again – it is not produced in the head but by the vocal cords – but we FEEL it in the head. That´s why it has been named head voice long ago. It is the result of function, not the cause of it. If we don´t have anyone to demonstrate tilted voice sound, we can also imagine crying or sobbing. They are natural human responses and primal sounds that we can take advantage of when learning to sing. Crying means the tilt happens naturally; adding even more cry with sob also lowers the larynx. This enables us to vary the colours of the voice depending on the emotianal contexts of songs.

If you have never been conscious of thyroid tilt it is possible to lose it. That can happen unfortunately for a number of causes. If too much pressure is used in singing the vocal fold vibration may become too thick and the lengthening / stretching of the cords gets more difficult. The fine edges of the cords that should be innervated and touch each other gently and firmly lose their sensitivity and thicken. That calls for even more pressure which of course exacerbates the situation. We hear this kind of forced singing all the time. The tilt that would enable the cords to stretch may be reduced. There are also cases where trauma to the neck or whiplash may cause deterioration of the laryngeal coordination, thus making singing very effortful.Image

How to tilt? Gently moan and cry, do the siren exercise (sing on –ng). You might  palpate the front of the neck gently and feel the tiny forward rocking motion. Tilting adds sweetness to the sound as well as healthy vibrato. Tilt can be used in all genres, not only classical and it makes singing more comfortable and easier.

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