Ayu at 2018 FNS Uta no Natsu Matsuri July 25th

[rainbow_smile]

^ Now that you mentioned it, I think I've heard a vocalist say that it's very hard to hold high notes without damaging your vocals if you're not doing vibrato. But they specifically said it about high notes, while most of ayu's vibratos are at low notes iirc.

Correct me if I'm wrong though, I'm not a professional or anything, that's just what I've heard from someone else