I watched a scene on Youtube about a girl who competed against another student, a boy in singing. The catch was that while the girl was singing herself, the boy programmed a Vocaloid to sing. In the end the Vocaloid could outsing the girl.
I am looking for the Chinese drama featuring this scene. All I know is that drama is a Chinese TV show about a school where students learn to sing. There are some really amazing songs in it, also some singing and dancing scenes similar like High School Musical. I have no idea about the title anymore, but if I remember right, this was a second season what I started to watched (that is why I had no idea about why the characters knew each other). The students were important in the story, but the main character was a music/singing teacher working at the school.
Please help me find this drama!