Do you Know The Differences Between Correct or Incorrect Tone
In order that we may more clearly see the difference between the correct and the incorrect tone, begin by singing quite simply and "naturally," as though we knew nothing at all about the technique of tone.
Beginning at a comfortable pitch, in the middle of the voice, sing " ah."
1. Sing it the first time in a lackadaisical way, with a flat-sounding "eah" sound.
2. Sing this same tone with the mouth rounded as though saying " hooh."
Neither tone sounded right, did it? Neither tone had the point that we desired. But here is a simple exercise that will help you toward that point:
3. Sing these same tones, but on the first two notes sing the syllables "ah, ah," on the third syllable sing the sound "eng," with the mouth open, giving the "g" (as in go) full value, and on the fourth tone sing the sound "oaw," at the same time striving for the "oaw" to feel focused at the point where the nose and forehead meet.
What happens? As you sang the number one exercise, "eah," in a white, flat tone, the voice sounded entirely back in the throat. It was muffled and lacked resonance. In the second experiment, the " h00000h" tones got their entire resonance in the mouth and besides sounding a little owlish, they were muffled and dull. But the third experiment, if you did the exercise correctly, directed the tone into the resonating cavities of the head, because as you sang the syllable "eng," the passage at the back of the throat was closed for a second, and the tone sung on the "oah" could not escape through the mouth alone, but was gently driven into the head resonance cavities, where it acquired the focus and the carrying power, as well as roundness, that you desire!
Although the air is directed through the nose the tone is never in the nose, nor is it nasal. It is above the nose, coming through the nose. There is absolutely no similarity between a nasal sound, which is extremely ugly, and a tone with point or head resonance, which is the ideal of the singing voice. There are any number of variations of the " eng-oah " exercise, all of them helpful in gaining the "point" needed in every voice.