Music management

Fresh new user.
I’ve checked the web for a while, and I realized that there is nothing to browse, manage, play and playlists your music on your website.
Let’s say I want to store all my mp3’s on my webspace and want to manage them from any remote computer. I want to move the files, manage the folders, drag the files to build playlist and play them. Exactly like what I’m doing in Itunes, except that I’m on my webspace.
I tried Wimpy, but the interface is poor. I’m looking for something like wordpress but for music, where everything is editable via web. It would be something like an FTP browser with an embedded player. Like hving iTunes on the web.
I’m not an expert, but I think that the first one producing it would make good money.
Or maybe I havent look enough and there’s already something like that.
Please help.