Music Based Battles

I was just wondering if there is a script for music based battles.

I have looked around but I cannot find any and I am terrible at writing my own scripts.

If anyone is particularly good at writing scripts I would give you credit in the game for using your battle system.

The kind of music battle system am looking for is a side-view Guitar Hero-style battle.

The best example of which is a recent game called 'Theatrhythm Final Fantasy' which uses this kind of battle style with the music of the Final Fantasy games,

however I am looking for a script that uses the default VX Ace music.

[Link to the 'Theatrhythm Final Fantasy' Battle style]

http://www.blogcdn.com/www.joystiq.com/media/2012/03/tff322.jpg

The idea is that the player will have to press ^, v, > or < in good timing in order to deal damage.

This could also be extended as to have the player have to press ^, V, >, <, a, s, d or f for example in harder battles.

So if anyone has made/found or is willing to make this script I would be extremely grateful.