I posted a question about how to improvise over a specific progression, and it was immediately flagged as inappropriate for the SE. Yet here are at least 4 questions that are almost identical in spirit to mine that weren't flagged and received multiple responses:
Why was my question singled out? How is it different from any of these?
The moderator who shut it down claims that it was because I was asking for references as opposed to direct advice, so I edited it accordingly but it is still on hold.
In the philosophy SE where I usually hang out, moderators don't immediately shut down questions, they at least offer advice on how to change it to suit the SE's guidelines, and the option to vote on reopening the question is available, especially after editing by the OP.
Moreover reference requests are a completely acceptable type of question in a lot of other SE's (you can't get more objective than "here's an author/reference/link to what you are asking for"), why are they considered so inappropriate here?