8-bit arduino discotech

void setup(){

   //big speaker
   pinMode(3,OUTPUT);
   
   pinMode(11,OUTPUT);
   pinMode(12,OUTPUT);
   pinMode(13,OUTPUT);
   
}

//------------------------------------

//Chords / notes
void C_chord(){
  tone(3, 262);
}

void G_chord(){
  tone(3, 392);
}

void A_chord(){
  tone(3,440);
}

void F_chord(){
  tone(3, 349);
}

//------------------------------------

//Colours
void blue(int dly){
  digitalWrite(11,HIGH);
  digitalWrite(12,LOW);
  digitalWrite(13,LOW);
  delay(dly);
}

void pinkish(int dly){
  digitalWrite(11,HIGH);
  digitalWrite(12,LOW);
  digitalWrite(13,HIGH);
  delay(dly);
}

void red(int dly){
  digitalWrite(11,LOW);
  digitalWrite(12,LOW);
  digitalWrite(13,HIGH);
  delay(dly);
}

void green(int dly){
  digitalWrite(11,LOW);
  digitalWrite(12,HIGH);
  digitalWrite(13,LOW);
  delay(dly);
}

void gb(int dly){
  digitalWrite(11,HIGH);
  digitalWrite(12,HIGH);
  digitalWrite(13,LOW);
  delay(dly);
}

void white(){
  digitalWrite(11,HIGH);
  digitalWrite(12,HIGH);
  digitalWrite(13,HIGH);
}

//------------------------------------

void loop(){
  
  //1st progression
  for(int i = 0; i < 4;i++){
    
    C_chord();
    red(50);
    green(50);
    blue(50);
    pinkish(50);
  
    G_chord();
    red(50);
    green(50);
    blue(50);
    pinkish(50);
  
    A_chord();
    red(50);
    green(50);
    blue(50);
    pinkish(50);
  
    F_chord();
    red(50);
    green(50);
    blue(50);
    pinkish(50);
 
  }
  
  //2nd progression
  for(int i  = 0; i< 4;i++){
    
    
    G_chord();
    gb(50);
    green(50);
    blue(50);
    pinkish(50);
  
    F_chord();
     gb(50);
    green(50);
    blue(50);
    pinkish(50);
  
    A_chord();
     gb(50);
    green(50);
    blue(50);
    pinkish(50);
  
    F_chord();
    gb(50);
    green(50);
    blue(50);
    pinkish(50);
    
  }
  
  //1st progression
  for(int i = 0; i < 4;i++){
    
    
    
    C_chord();
    pinkish(50);
    red(50);
    blue(50);
    green(50);
  
    G_chord();
    pinkish(50);
    red(50);
    blue(50);
    green(50);
  
    A_chord();
    pinkish(50);
    red(50);
    blue(50);
    green(50);
  
    F_chord();
    pinkish(50);
    red(50);
    blue(50);
    green(50);
    
  } 
  
  //3rd progression
  for(int i = 0; i < 1;i++){
    
    F_chord();
    pinkish(50);
    red(50);
    pinkish(50);
    red(50);
  
    G_chord();
    pinkish(50);
    red(50);
    pinkish(50);
    red(50);
  
    C_chord();
    pinkish(50);
    red(50);
    pinkish(50);
    red(50);
  
    A_chord();
    pinkish(50);
    red(50);
    pinkish(50);
    red(50);
    
  }

}