Scott Schiller, the best moustache-d frontend engineer around, has updated his awesome SoundManager library. The latest SoundManager 2 version now comes with free HTML5 Audio support which makes it a HTML5 Audio()-capable JavaScript Sound API, backwards-compatible via Flash fallback for MP3/MP4 formats. Existing SM2 API seamlessly uses HTML5 where supported, currently experimental; and of course… works on iPad.

Source: Ajaxian » SoundManager2 now with HTML5 Audio.