https://music.stackexchange.com/help/on-topic no more than states:

>music theory, notation, history, or composition

But this doesn't appear to distinguish between on- and off-topic questions. So what are the criteria for fitness? I haven't found a straightforward exposition of them, e.g. on https://music.stackexchange.com/help/dont-ask.

I'm assuming some of the following questions as on-topic; none are closed as of 2017 Dec. 24.

Some music history questions apparently are judged off-topic (like [my 3 on Xenakis](https://music.meta.stackexchange.com/q/2862/26407)); but others like the following (none mine) aren't.



4. https://music.stackexchange.com/questions/671/prokofievs-style, 
5. https://music.stackexchange.com/questions/433/training-and-influences-of-j-s-bach?rq=1, 
6. https://music.stackexchange.com/questions/63091/why-was-brahmss-music-considered-too-academic?s=1|70.9273, 
7. https://music.stackexchange.com/questions/17461/whats-so-off-about-the-intro-to-prokofievs-dance-of-the-knights, 
10. https://music.stackexchange.com/questions/29400/why-did-composers-write-atonally/29408#29408
1. https://music.stackexchange.com/q/9779/26407
2. https://music.stackexchange.com/q/6078/26407