Christmas Music Box

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

File myFile;
TMRpcm music;

void setup() {
  Serial.begin(9600);
  Serial.println("Initial SD Card...");
  pinMode(10, OUTPUT);
  
  // chekc if the SD card exists and is usable
  if (!SD.begin(4))
  {
    Serial.println("Card failed, or not present");
    // stop sketch
    return;
  }
  Serial.println("SD card is ready");
  music.speakerPin = 9;  // set speaker pin for tmrpcm
  music.setVolume(5); // set the volume to level 5
  delay(100);
  pinMode(8, INPUT_PULLUP);  // pull pin high for checking button pushed
  pinMode(7, INPUT_PULLUP);
  
  // LED pin definition
  randomSeed(analogRead(0));
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
}

// 4 leds shine ramdomly 
void ledShine() {
  int randomNumber = random(1, 5);
  switch(randomNumber) {
    case 1:
      ledBlink(2);
      break;
    case 2:
      ledBlink(3);
      break;
    case 3:
      ledBlink(5);
      break;
    case 4:
      ledBlink(6);
      break;
      }
}

void ledBlink(int ledpin) {
  digitalWrite(ledpin, HIGH);
  delay(400);
  digitalWrite(ledpin, LOW);
  delay(50);
}
 
void loop() { 
  if(digitalRead(7) == LOW) {
    delay(100);
    music.play("1.wav");
    Serial.println("Song1 is playing...");
  }
  else if(digitalRead(8) == LOW) {
    delay(100);
    music.play("2.wav");
    Serial.println("Song2 is playing...");
    }
  else
  ledShine();
}