/*
 *  call-seq:
 *    volume  -> vol
 *
 *  Return the volume level of the music.
 *  0.0 is totally silent, 1.0 is full volume.
 *
 *  **NOTE**: Ignores fading in or out.
 *      
 */
static VALUE rg_music_getvolume( VALUE self )
{
  RG_Music *music;
  Data_Get_Struct(self,  RG_Music, music);

  return rb_float_new(music->volume);
}