HTML5 Audioplayer - an experiement with various HTML5 APIs

This is an experimental audioplayer written in Javascript. It is based on the HTML5 audio-Tag that is supported in all modern browsers. Additionally, we use some other APIs from the HTML5 specifications: DnD-API (Drag&Drop), File-API as well as the Canvas-API (canvas tag). It works very well, but at some times for some reasons the browsers won't play some audiofiles even though they support these formats (maybe a wrong encoding or so). So it can happen that a browser does not play your song. One note to IE9: this browser supports the audio-tag, but it does not support the File-API, so this demo will not work with this browser.