Welcome to Steemit adriandj90. Let me know if you got any questions about Steem/Steemit. The official FAQ can be found here and is quite extensive https://steemit.com/faq.html - Also, Steemit is just one of the sites using Steem the blockchain. We also have Dtube, Dsound and Steepshot if you prefer videos,music or pictures instead of blogging content. And many more of course!
Thank you very much for the welcome, I would like to know how to upload my music here?
For that you can use Dsound. It's just like Soundcloud but using Steem to reward users.