Browser multi-track music mixer

Hi. I'm hoping to get an online browser multitrack music mixer to present music work to clients. I'd like to them to be able to listen to a mix & have the ability to solo and mute each of the separate component tracks. For example. separate tracks of drums, bass, guitar, vocals etc Here's a perfect example of what I'd like: [login to view URL] (although I don't need separate microphone options etc) Here's a youtube video showing how it works: [login to view URL] I would like it to branded with my logo, and I probably can't use Soundcloud, because of client confidentiality. So I hope to be able to integrate it into one of my iWeb sites i.e. upload mp3s to a site that I manage & have the browser mixer pull the mp3s from there. Or have a site specifically to park these mp3s for each project. Thanks!