How to play random sound file when clicking an item within a scrollable list (controlP5 library)?

I'm using the 'scrollableList' from the controlP5 library. I wish to simply play a random sound file each time I click an element on the scrollable list, without pausing.

I have tried a few things. I am having limited success with some code from @akenaton that I found in this thread: https://forum.processing.org/two/discussion/8949/how-do-i-play-a-random-audio-sample

I merged that code with the scrollable list. So far, I'm only managing to pause the audio on clicking the menu. I am probably missing something obvious.

As ever, any tips much appreciated :)

import ddf.minim.*;
import controlP5.*;
import java.util.*;
AudioPlayer player;
Minim minim;
ControlP5 cp5;

boolean playeurInit = false;// que leplayer n'est pas lancé
boolean stop = true;

String[] table = {"train1.wav", "train2.wav"};

int randomWav; 
String wav; 

void setup() {
  size(400, 400);

  minim = new Minim(this);
  int randomWav = int(random(table.length));
  String son = table[randomWav];
  //println(son);
  player = minim.loadFile(son);
  player.pause();   

  cp5 = new ControlP5(this);
  List l = Arrays.asList("a", "b", "c", "d", "e", "f", "g", "h");
  cp5.addScrollableList("dropdown").setPosition(10, 10).setSize(200, 100).setBarHeight(20).setItemHeight(20).addItems(l);   
}


void draw() {
  background(240);
  if (!stop) {
    if (player.isPlaying() == false) {
          randomWav = int(random(table.length));
          println(randomWav);
          wav = table[randomWav];
          player = minim.loadFile(wav);
          player.play();
          player.loop();//you can change that!
          playeurInit = true;
     }
  }
}


void dropdown(int n) {
  if(stop == true)
  {
    stop = false;
  }else{
    stop = true;
    player.play();
    if (player.isPlaying() == true ) 
    {
      player.pause();
      //player.play();
    }
  }

  CColor c = new CColor();
  c.setBackground(color(255,0,0));
  cp5.get(ScrollableList.class, "dropdown").getItem(n).put("color", c);
}


void stop(){
  player.close();
  minim.stop();
  super.stop();
}