Do you follows Ayu voice correctly when you sing her songs?

[haikudasai]

If I remember correctly I thought using your jaw for vibrato was a bad thing. You're tensing it up and release it several times and can cause pain... any professionally trained singers know this to be true?


I think her vibrato is atrocious at times.

When I sing with her songs I will usually just use my normal vibrato.

Sometimes I find myself singing a lower key too.