1.Simplicity (I love Boxcutter but his back catalogue won't bother the top twenty)
2.Unexpectedness (killer idea or hook that gets people talking)
3.Concreteness (i.e not vague and makes sense)
4.Credibility
5.Emotions (does it make you feel something)
6.Stories( Not sure how to apply this to music but it refers to people repeating the idea verbally, in the book, and that helps it sink in. So it could be radio/Dj support etc.
And when you take the first letters they spell SUCCES so it must be true

This is just to throw ideas around so please no flaming me as if I just planted porn on grooverider.