Not sure if I ever gave this link here for this mp3 player tutorial! Anyway while surfing some tuts today I found this complete Flash mp3 player tutorial with actionscript 3.0, this player has all the main features you will see on the most complete players around web, you probably should implement a new design, but this tutorial will open the doors to you if you want to develop something similar.

The player has features has volume slider, skip music, pause, play, stop, playlist, time and more. MP3 files are loaded from a XML file.

Flash MP3 Player Tutorial