Trouble making pushbutton play WAV file on repeat!

hi there. i'm trying make push button start wav file , play on repeat. right now, push button plays audio once. without push button, code allows audio play on repeat. know how can make push button play audio continuously?

code: [select]

#include <sd.h>
#include <tmrpcm.h>
tmrpcm tmrpcm;

int wasplaying = 0;
int finished = 0;
int start = 0;
int buttonpin = 2; //digital pin 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 speaker is
}

void loop() {
  buttonstate = digitalread(buttonpin);
  serial.println(buttonstate);

  if(buttonstate == high){ //if button pressed, test.wav played once
  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; 
}
 


how want turn off?
look @ state change detection example in ide under examples -> 02 digital sub menu.
use count number of button presses , play file according number, using if statement.

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