Where did Ayu's performing style change?

[music_*]

I think it's perfectly natural for her performing style to change.
For me, the way she performs a song represents her state of mind at that time.
For example, A Song for XX in A Museum vs CDL06-07.
IMO, when she just stood there and sang this song, she had already 'settled' with herself. She didn't felt like how she did when she wrote the lyrics.
But there was even kungfu at CDL06-07. I think she was saying that she's gotten stronger.
Besides, doesn't that movable thingy at CDL07-08 mean that she wants to be closer to the audience?

No matter how her performing style is changing, her current performances still blow me away.

EDIT: I don't think I answered your question. :/ Sorry about that.