One thing in this community is not to upload a lot of posts at once(is seen as bad culture). Tipically 1 or 2 a day max.
I see you use 3Speak, there is also peakd.com for more of a blog interface. Also if you want to put a post in multiple communities there is a functionality for it: re-blogs, it let's you re-blog any post to multiple communities.
For more basic info: hiveonboard.com
I know is quite the curve of learning, you'll get it don't worry, just ask anything you might want to know and people will respond.
At the moment you are doing great! I'll listen to these songs later!
Have a great day!😊