Arduino - processing: serial data to toggle mp3 file in minim

Processing Electronics (Arduino, etc.)
5

Thank you.

Here is the code:

import processing.serial.*;
import ddf.minim.*;
//import processing.video.*; 

Minim minim;

AudioPlayer player;
Serial myPort;
String val = null;    


void setup() {
  minim = new Minim(this);
  size(640, 480);
  String portName = Serial.list()[2];
  myPort = new  Serial(this, portName, 9600);
  myPort.clear();
  myPort.bufferUntil('\n');
  player = minim.loadFile("groove.mp3");
}


void serialEvent (Serial myPort) {
  while (myPort.available() > 0) {
    val=myPort.readStringUntil('\n');

    if (val != null) {
      val = val.trim(); // let's remove whitespace characters
      if (val.equals("L")) {
        if (player.isPlaying() == true) {
          player.pause();
          println("in the Loud if statement");
        }
      }
      //} else {
        if (player.isPlaying() == false) {
          player.play();
          println("in the Quiet if statement");
          //println(val);
        }
      }
    }
  }
}







void draw() {
  background(0);
  println(val);
}
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