Flash DDR: Custom Songs

Note: Changed to alpha, still thoroughly testing!
Beta testing version of my newest flash game. This game is meant to be somewhat like Dance Dance Revolution (DDR) [minus many features]. The main feature of this game which was pretty effort-some to create was the user-uploading of .mp3 files/songs.
Anyway enjoy!

Please note that the song plays loud out of the right speaker/headphone and really soft on the left. This is purely intentional (for game function purposes).

This is a developer's edition so there is debugging stuff everywhere.

Please comment on any bugs, suggestions for game modifications or anything else .... actually i know there are alot of bugs:

Gotta fix pause game
Fix rhythm analysis selector to work with previously used song

Made in AS3, with the aid of computeSpectrum and some other stuff

INSTRUCTIONS
Yes i know that this important piece of info is missing from the game....
WASD or Arrow Keys to play. If you don't know how to play DDR then i'm seriously not gonna try...