Anybody can explain this code?

//Anybody can explain this code and how to play the attached sound Objects
//in this code.


_root.createEmptyMovieClip("soundLib", 1);
for (i=1; i<=3; i++){
 soundLib.createEmptyMovieClip ("holder_" add i, i);
 _root["sound_" add i] = new Sound (soundLib["holder" add i]);
}

:upset:
//For attaching the sound to a flash movie it’s better to create different sound
//Objects that targetting the different MCs on the stage.