private void drawFrequencies(Graphics2D graphics){
  drawFrequencyLine(graphics,getAxisFromFrequency(1000),Color.LIGHT_GRAY);
  drawFrequencyLineAndLabel(graphics,2000);
  drawFrequencyLine(graphics,getAxisFromFrequency(3000),Color.LIGHT_GRAY);
  drawFrequencyLineAndLabel(graphics,4000);
  drawFrequencyLine(graphics,getAxisFromFrequency(5000),Color.LIGHT_GRAY);
}

private void drawFrequencies ( Graphics2D graphics ) { drawFrequencyLine ( graphics , getAxisFromFrequency ( 1000 ) , Color . LIGHT_GRAY ) ; drawFrequencyLineAndLabel ( graphics , 2000 ) ; drawFrequencyLine ( graphics , getAxisFromFrequency ( 3000 ) , Color . LIGHT_GRAY ) ; drawFrequencyLineAndLabel ( graphics , 4000 ) ; drawFrequencyLine ( graphics , getAxisFromFrequency ( 5000 ) , Color . LIGHT_GRAY ) ; }
draws the frequency lines and labels every 10khz
