Apple music - CHINA subscrition prices

www.apple.com/cn/apple-music/ lists prices, with RMB 10/month for Individual (~€ 1.33).

The Apple Music catalog is regional. Artists with a worldwide audience will make effort to be available worldwide, but local talent may not think that representation all over the globe is worthwhile.

Edit:

Availability of Apple Music and iTunes Match - Apple Support

I suggest you do a general web search for answers to your other questions. I saw one web site mention a price back in 2015.

As for a music list, that would require somebody who had looked at every song on the list for two countries! I suggest you ask, in Chinese, on 官方 Apple 支持社区 and preview here: 从 iTunes 下载的 音乐

Another contributor to this thread seems to have found more recent pricing information.

You can review the catalog using the link I provided and see how it fits your taste. Of course offerings will vary from country to country depending upon who gives permission to distribute their media.

I will be greatly surprised if they give you a detailed list of all the differences. Somebody will have to spend time with two enormous databases with millions of tracks and it is quite possible they have completely different departments for the different country stores. Then, of course, you have to sit down and review the lists yourself. If you're worried about a particular artist then just check the Chinese list. Or just pay the couple of Euros a subscription would cost for a month and see if you're happy with it. It kind of strikes me you're really being fussy over something with much, much easier solutions and with a lot less time investment (I alone have invested 20 minutes of my time on this thread).

You do know, of course, that Apple Music includes Match which means if you have a copy of certain music on your computer it will be placed in iCloud for your access there too?