Former musicians who become cultural arbiters are the ones that start their own labels (critics who put their money where their mouth is). Examples are everywhere. Mo Wax, Twisted Nerve, Chemikal Underground, Third Man, etc
I love this idea - I think it helps to explain the existence of rockstar developers who then become arbiters of what is valuable - a bit like musicians who become critics after they've made their name!
Also, new(er) developers seem to like to set themselves against the mainstream as if to say, 'this isn't your parents' language', until they eventually end up liking jazz (lisp?).