I also love her deepening voice. When I got into Ayu, the first song I ever heard was Dearest, from the ending of the InuYasha anime.. About two years later (2009) I decided I'd listen to her live, so I found the clip of Ayu performing Dearest in her Asia Tour 2008.. and omg my jaw dropped. It sounded so different, but when I searched for others, I noticed her voice really had changed from the early 2000s and onwards. And I really don't mind. Her voice sounds really different, but still so so good! That's what I love about her