On my to-do list for some time was implemting Jeroen Wijering’s mp3 player (flash) in this blog as a mephisto filter.
Somewhere between the sessions of @media yesterday, I found the time to code it in (grab it , there are some steps to follow at the top of this file). It has sensible defaults, and configuration attributes.
You can also place alternate content inside the filter tag (e.g. a direct link to the mp3).
While the code degrades well with flash/javascript off in the browser, some work needs done on what shows up in feedreaders. The filter could be amended for RSS feeds and simply show a link to the mp3 file(s) being played. If anyone finds this filter useful, let me know.