import ddf.minim.*;
 
Minim minim;
AudioPlayer groove;
WaveformRenderer waveform;
 
void setup()
{
  size(512, 200, P3D);
 
  minim = new Minim(this);
  groove = minim.loadFile("groove.mp3", 2048);
 
  waveform = new WaveformRenderer();
  // see the example Recordable >> addListener for more about this
  groove.addListener(waveform);
}
 
void draw()
{
  background(0);
  // see waveform.pde for an explanation of how this works
  waveform.draw();
}
 
void keyPressed()
{
  if ( key == 'p' ) groove.play();
}
 
void stop()
{
  // always close Minim audio classes when you are done with them
  groove.close();
  // always stop Minim before exiting.
  minim.stop();
 
  super.stop();
}