Lilli Lehmann laments that nasal resonance is often neglected.
Today I made a sound file of ‘ng’. I practice ‘ng’ throughout my vocal range. If I concentrate on my happy surprise breath, onset and support then I feel what Lilli Lehmann calls ‘whirling currents’.
Here are a pair of ‘i’ vowels without nasality and a pair with nasality. I hope you agree with me that the second pair has more warmth than the first. This is because I added nasal resonance to the second pair of ‘i’ vowels.