The details you offer are slightly confusing... Why exactly should many of the talented artist here work on this remix for you? Is there any compensation offer for doing this remix? You mention exposure, but in what way are you talking about?
Good questions. I shall answer them in order.
Why exactly should many of the talented artist here work on this remix for you?
That is a question best answered by the talented artists. I make no promises and I twist no arms. If the musician is interested in performing such a task, sees what my flash animation history is, and decides that contributing to it is a worthwhile venture, then that's great. If not, they pass it up having lost only the time it took to read the request.
I've never scouted for a musician before so I am green regarding the industry protocols, I'll admit. I'm not saying that one should go spend a bunch of time on what is essentially an audition. I suppose I did not make that clear and I must apologize for it. What I did was give an idea of what I would be looking for as the end result of a willing musician's efforts in this project. A few interested people have already responded using examples of their previous work. That is turning out to be amazingly useful.
Is there any compensation offer for doing this remix?
Nope. I would not even know what price would be considered fair or acceptable. That said, any musician who requires money for their time is more than welcome to name their price. However, as my own creative history exists for the sake of creativity and not financial gain, I will gravitate towards people with similar values. Considering that I am not demanding that uninterested parties do things that they would otherwise not want to do, I do not believe that is unfair.
You mention exposure, but in what way are you talking about?
The same exposure that any animation on Newgrounds provides - Views on material. If being credited/co-authored in a production that will be seen by thousands is exposure worth the effort, then it's mutually beneficial. If it's not worth the effort, then don't do it. If in doubt as to the caliber of my projects, one can always view my production history. Again, I'm not forcing anyone to do anything.