Draft talk:Pearls of the Sound

I am struggeling with understanding what is needed when it comes to overcoming the review remark "Insufficient significant independent coverage demonstrated." If there is a limited amount of independent sources actually "proving" all the details in the wiki text available online, what should in your opinion be done? In this case, is there a need to reference all the results compiled? Or is it the general information about the size of choir, the location, the founder, the conductors, or anything else? Or is it simply a question about credibility? Could you provide suggestion on what to improve, to have the text approved?