Well, Basicly... it's K-ON!! Hirasawa Yui's 2nd Character CD. And I got my copy just now. Downloads can be found here. (Yui n Mio's... both character CDs) The songs are.... well.... kinda disappointing. I was hoping that it would be as good as the 1st one. Sadly, for now, only Mio's song improved a lot.
