[HONEY]

I'm happy that shes more active these days, I can see that she's raising the bar for herself in several aspects.
It would be good if Ayu would get a professional vocal coach and work with that person on a very regular basis for a few months. A singer has never learned out, also it's very easy to fall back as a singer. The voice is in a different condition everyday if you don't do the right exercise at the right moment/condition its not gonna help, so it's always good to have an outside standing person/professional hear out and listen to what the vocals need right now. With a quality coach (maybe like Seth Riggs) it would only bring her forward.