You can download all music, mp3 at JingleSPOT for free and without registration. However, only registered users are able to use the following additional features: * create audio and video playlists, * media blogging, * rate and comment on users' playlists and blogs, * and find new friends with the same interests. http://jinglespot.net/home/search_mp3.php
Add a nice logo, so your visitors don't forget your site name the next time they need it to visit your site. I did some searches, and find it a very useful engine.
I do not like the layout I think there is too much text on the page and I agree with cheapez I think you should add a logo asap and I think you should add a few colors into the color scheme to make the site look more attractive.
First, the width of the search box is too short . Second, Audio search engine ? It is a bit weird name. Why not name it "mp3 search engine", it is easy to remember .