Music Player that scans specified folder/directory of the mp3

Do you guys know any plugins that scans a specified folder where my mp3 directory is? or if not, can you teach me how do you make an mp3 playlist to scan a folder from your website.

n3rdskwat-mp3player – rejected(coz playlist doesn’t toggle hide and show also the ajax)

premiumbeat mp3 player – tried but I want to know if there are plugins like that.

if someone can teach me how to make a playlist, much better.