"How is the Music Business Hurting Music": I need sources for a paper on this?

I'm in a college composition class , and this is the subject of my research . I have many ideas, but most of the websites I find are the opinion and refer to any credible source . Can anyone help me get some legitimate sources for this? My " point " of ideas are : MedlinePlus MedlinePlus From a record company lends money to an artist rather than take profits , employees and artists are not in control of their music . MedlinePlus MedlinePlus Record companies pay to " promote" music radio stations , essentially ensuring that smaller artists without money or backup do not have much chance getting played. MedlinePlus MedlinePlus The contracts are written against the artists , with things like the controlled composition clause . MedlinePlus MedlinePlus MedlinePlus I'm pretty sure these are all legitimate points , but I can find little in the way of first-hand sources or statistics . Any help ?