How do I start/stop audio with push button??

Hi, I have been playing with this code for awhile. I would like to ultimately press a push button to start a wav audio and play it on repeat until I push the same button again. Right now I can press the button and it will play the audio repeatly but I can't stop it. Can someone help me? I'm a beginner. Here is the code:

#include <SD.h>
#include <TMRpcm.h> 
TMRpcm tmrpcm;

int wasPlaying = 0;
int finished = 0;
int start = 0;
int buttonPin = 2; //digital pin where the button is
int buttonState = 0;


void setup() {
  Serial.begin(9600);
  Serial.print("\nInitializing SD card...");
  pinMode(10, OUTPUT); 
  if (!SD.begin(10)) {                                  
    Serial.println("failed!");
    return;
  }
  Serial.println("done.");
  tmrpcm.speakerPin = 9; //digital pin where the speaker is
}

void loop() {
  buttonState = digitalRead(buttonPin);
  Serial.println(buttonState);
 

  while(buttonState == HIGH)
  { //if button is pressed, test.wav is played repeatedly
  (start = 1);
  playNext();
  if(tmrpcm.isPlaying())
    while(tmrpcm.isPlaying());
  tmrpcm.stopPlayback();
  } 
}

void playNext() { 
  if(wasPlaying == 1) {
    Serial.println("Completed playback.");
    wasPlaying = 0;
    finished = 1;
    start = 0;
  }
  tmrpcm.play("test.wav");           
  wasPlaying = 1;  

}

Because I was taking things one step at a time... :frowning: