yes.. she probably had some vocal classes.. I mean it was 100% life, this concert.. you can easily tell if you're there.. and there were minor imperfections.. but generally her voice was amazing. especially compared to the other post-2008 shows... she has regained her vocal ability, it seems.
and btw. they promoted the 3d movie of the previous concert.. and ayu told us it was not like avatar,, but.. she really liked the avatar movie.. and shuya talked about this avatar on twitter being avatar... but its not him; cause obviously he;s not blue.. he told us