I just came across this Wikipedia Classical Music Project while looking for some information about Aubrey Brain, who I guessed correctly as the father of Dennis Brain (what a family, eh?).
After reading through the article (and being frustrated by the family members who have links but do not yet have articles), I scrolled through the names of participants in the Wikipedia Classical Music project, and didn't see many (if any) familiar names. With all the (obviously intelligent) readers who might make their way to this blog because of a particular musical interest backed up by a considerable amount of musical knowledge, I imagine that there would be a few who might have something worthwhile to contribute to Wikipedia, if they only knew how. This tells you how to do it.