does the job!

was a little hard to setup because i need multiple playlists and im a noob in wordpress.

if it helps:
1. in the file manager, i created a new folder “audio” in “wp-content”.
2. in ‘audio’ added more folders (playlist names)
3. into each folder uploaded the mp3 files relevant to the playlist.

in the post page added the shortcode (can be found in plugin website):
[ mp3-jplayer tracks=”FEED:/wp-content/audio/playlist-name” dload=”y”]
(without the spacing)

and works perfect!

one last tip – make sure that in settings > media library> order playlist by: is TITLE (and not ‘filename’)