The vid posted on page 1 got removed. Here's one that is working and legit.
http://www.youtube.com/watch?v=m-ebOXDyhTk
That music is amazing...and yeah, the faces look somewhat like K-ON, but they don't feel anything like they did in K-ON. There was a mix of spirit and solemness to this clip. I'm really looking forward to this now.
Seiyuu info:
Kanata - Aikawa Juri. This is her first role as a seiyuu.
Kureha - Kitamura Eri. Did the voices of Tatiana from Last Exile, Saya from Blood+, Amuria from Simoun. Interesting to see whether she does a bit of a severe voice like Tatiana or a gentler one like some of her more recent work. Liked her Tatiana performance.
Noel - Yuuki Aoi. She did the voice of Murasaki in Kurenai. I liked that performance.
Phylicia - Endou Aya. Voiced Sheryl Nome in Macross F.
Rio - Kobayashi Yuu. Voiced Nice Holystone in Baccano, Shidou in Mariaholic and Handea in Higepiyo.