By using a combination of the list of articles and the uri options, you
can create a playlist of files which are attached to an article. This is
the code I used:
{{ list_article_attachments }}
{{ if $campsite->current_list->at_beginning }}
{{ /if }}
{{ if $campsite->attachment->extension == "mp3" }}
value="/templates/radioactive/apps/player_mp3_maxi.swf" />
{{ /if }}
{{ /list_article_attachments }}
Note that there is a special if condition: checking if the attached file
is actually an mp3 file. If you want to play with this, you could extend
this and e.g. also embed flv video players or other embedded objects
according to the mime-type (i.e. ending) of the attached file.