I just watched it on youku. A bit off-key for Love Songs but still alright. Tetsuya Komuro is a genius though, all the songs he wrote for Ayu are simply awesome.
M was good, powerful. I liked it. Of course her voice sounds different from when she was younger, it's more mature. The lighting for M was also very nice.
It's a pity Ayu never sang M for Kouhaku. It would have been so grand.
http://v.youku.com/v_show/id_XMjMyMDQyMDEy.html