What service can I use to stream my music over the internet?

I have a cellphone with the possibilities of the Internet, I also have a package of the Internet. I want to upload in some way my music to the web. And from the effluisce to my phone via the Internet. I have seen the globe and that req. your house to be an assistant, which means my computer must be above all day. My Comp. take place on approximately a few hours and not all day. Visitor: I need a "globe-like" assist which is not req. me to keep my PC on all day. Moreover, the characteristic of reordering would be agreeable. Answers appreciated!