import ddf.minim.*;
import ddf.minim.analysis.*;

Minim minim;
AudioPlayer groove;
FFT fft;


void setup(){
  size(512, 400);
  minim = new Minim(this);
  groove = minim.loadFile("piano.mp3", 512);

}
 void draw(){
  background(0);
  fft = new FFT(groove.bufferSize(), groove.sampleRate());
  fft.forward(groove.mix);
  stroke (255,0,0,128);
  for(int i = 0; i < fft.specSize(); i++)
  {
    line(i, height, i, height - fft.getBand(i)*4);
  }
 
  stroke(255);
for(int i = 0; i < groove.left.size() - 1; i++)
  {
    line(i, 50 + groove.left.get(i)*50, i+1, 50 + groove.left.get(i+1)*50);
    line(i, 150 + groove.right.get(i)*50, i+1, 150 + groove.right.get(i+1)*50);
    
  }
}

 void keyPressed() {
   if (key == 'a' || key == 'A') {
       println ("playing groove 1");
       groove = minim.loadFile("piano.mp3", 512);
       groove.rewind();
       groove.play();
       
   } else if (key == 's' || key == 'S') {
      groove = minim.loadFile("piano1.mp3", 512);
       println ("playing groove 2");
       groove.rewind();
       groove.play();
           
   } else if (key == 'd' || key == 'D') {
      groove = minim.loadFile("piano2.mp3", 512);
       println ("playing groove 3");
       groove.rewind();
       groove.play();
       
    } else if (key == 'f' || key == 'F') {
      groove = minim.loadFile("piano3.mp3", 512);
       println ("playing groove 4");
       groove.rewind();
       groove.play();   
       
     } else if (key == 'j' || key == 'J') {
      groove = minim.loadFile("piano4.mp3", 512);
       println ("playing groove 5");
       groove.rewind();
       groove.play();
       
        } else if (key == 'k' || key == 'K') {
      groove = minim.loadFile("piano5.mp3", 512);
       println ("playing groove 6");
       groove.rewind();
       groove.play();
       
        } else if (key == 'l' || key == 'L') {
      groove = minim.loadFile("piano6.mp3", 512);
       println ("playing groove 7");
       groove.rewind();
       groove.play();
       
      
      }
 }