navjeet

I found some music on many sites and also on some web site design company site. Can someone tell me how they add this music? Please tell me, what is the process which programmer follows during making some sites. Answer with what it is called and the address were I can play it thanks.

I have a content website, and the content is very good. I have been doing SEO on my site for four months. I have had a one-way backlink request success rate of almost 20%, and reciprocal link request success rate of almost 65%, which I think is very good.
However, I want to spend the little time I get off my university on improving my site, rather than SEO. If I hire someone, or web site design company to do SEO on my site, how much should I pay? Will adSense or something similar be able to cover the costs?
Thanks