I can tell you one thing right now -- you will get more readers if you use your summary space to describe your plotline. Save the disclaimer for an A/N in the story file.
There doesn't seem to be much action in here. What are Inuyasha and the guys doing as music execs?
Perhaps instead of a long line of story lyrics, you could describe how the singer feels or the expressions on her listeners' faces. This girl is borderline Sue.