/*

By Ben Schwartz, offered under a Creative Commons BY-SA 3.0 license http://creativecommons.org/licenses/by-sa/3.0/

For more details see Schwartzster.com/chimes

  Plays tunes on the pentatonic metallophone
  
    Pin  Note  Tube
    3    D     1 (longest)
    4    E     2
    5    G     3
    6    A     4
    7    B     5
    8    d     6
    9    e     7
    10   g     8 (shortest)
  
 */

int val = 0; 
int tune = 0;
int button = 5;
int led = 13;
int n1 = 3;
int n2 = 4;
int n3 = 5;
int n4 = 6;
int n5 = 7;
int n6 = 8;
int n7 = 9;
int n8 = 10;

// the setup routine runs once when you press reset:
void setup() {                
  //initialize analog input pin
  pinMode(button, INPUT);
  
  // initialize the digital pins as outputs.
  pinMode(n1, OUTPUT);     //longest tube
  pinMode(n2, OUTPUT);
  pinMode(n3, OUTPUT);
  pinMode(n4, OUTPUT);
  pinMode(n5, OUTPUT);
  pinMode(n6, OUTPUT);
  pinMode(n7, OUTPUT);
  pinMode(n8, OUTPUT);     //shortest tube
  pinMode(led, OUTPUT);

  // plays the scale as a test
  digitalWrite(led, HIGH);
  delay(80);
  digitalWrite(led, LOW);
  delay(150);

  digitalWrite(n1, HIGH);
  delay(80);
  digitalWrite(n1, LOW);
  delay(150);
  
  digitalWrite(n2, HIGH);
  delay(80);
  digitalWrite(n2, LOW);
  delay(150);
  
  digitalWrite(n3, HIGH);
  delay(80);
  digitalWrite(n3, LOW);
  delay(150);
  
  digitalWrite(n4, HIGH);
  delay(80);
  digitalWrite(n4, LOW);
  delay(150);
  
  digitalWrite(n5, HIGH);
  delay(80);
  digitalWrite(n5, LOW);
  delay(150);
  
  digitalWrite(n6, HIGH);
  delay(80);
  digitalWrite(n6, LOW);
  delay(150);
  
  digitalWrite(n7, HIGH);
  delay(80);
  digitalWrite(n7, LOW);
  delay(150);
  
  digitalWrite(n8, HIGH);
  delay(80);
  digitalWrite(n8, LOW);
  delay(150);
}

// the loop routine runs over and over again forever:
void loop() {
  //wait for button press
  val = analogRead(button);
  if (val > 920) {
    tune = random(1,5);
    
    if (tune == 1) {
    //play short'nin' bread
   digitalWrite(n3, HIGH);
   delay(80);
   digitalWrite(n3, LOW);
   delay(150);
   
   digitalWrite(n3, HIGH);
   delay(80);
   digitalWrite(n3, LOW);
   delay(150);
   
   digitalWrite(n7, HIGH);
   delay(80);
   digitalWrite(n7, LOW);
   delay(150);
    
   digitalWrite(n7, HIGH);
   delay(80);
   digitalWrite(n7, LOW);
   delay(150);
   
   digitalWrite(n6, HIGH);
   delay(80);
   digitalWrite(n6, LOW);
   delay(150);
   
   digitalWrite(n6, HIGH);
   delay(80);
   digitalWrite(n6, LOW);
   delay(150);
   
   digitalWrite(n7, HIGH);
   delay(80);
   digitalWrite(n7, LOW);
   delay(400);
   
   digitalWrite(n3, HIGH);
   delay(80);
   digitalWrite(n3, LOW);
   delay(400);
   
   digitalWrite(n7, HIGH);
   delay(80);
   digitalWrite(n7, LOW);
   delay(400);
   
   digitalWrite(n6, HIGH);
   delay(80);
   digitalWrite(n6, LOW);
   delay(400);
   
   digitalWrite(n7, HIGH);
   delay(80);
   digitalWrite(n7, LOW);
   delay(400);
   
   digitalWrite(n3, HIGH);
   delay(80);
   digitalWrite(n3, LOW);
   delay(150);
   
   digitalWrite(n3, HIGH);
   delay(80);
   digitalWrite(n3, LOW);
   delay(150);
   
   digitalWrite(n7, HIGH);
   delay(80);
   digitalWrite(n7, LOW);
   delay(150);
    
   digitalWrite(n7, HIGH);
   delay(80);
   digitalWrite(n7, LOW);
   delay(150);
   
   digitalWrite(n6, HIGH);
   delay(80);
   digitalWrite(n6, LOW);
   delay(150);
   
   digitalWrite(n6, HIGH);
   delay(80);
   digitalWrite(n6, LOW);
   delay(150);
   
   digitalWrite(n7, HIGH);
   delay(80);
   digitalWrite(n7, LOW);
   delay(400);
   
   digitalWrite(n5, HIGH);
   delay(80);
   digitalWrite(n5, LOW);
   delay(400);
   
   digitalWrite(n4, HIGH);
   delay(80);
   digitalWrite(n4, LOW);
   delay(400);
   
   digitalWrite(n3, HIGH);
   delay(80);
   digitalWrite(n3, LOW);
   delay(1000);

   tune = 0;
   return;
   }
   
   if (tune == 2) {
    //play riddle song
   digitalWrite(n4, HIGH);
   delay(80);
   digitalWrite(n4, LOW);
   delay(150);
   
   digitalWrite(n4, HIGH);
   delay(80);
   digitalWrite(n4, LOW);
   delay(150);
   
   digitalWrite(n4, HIGH);
   delay(80);
   digitalWrite(n4, LOW);
   delay(150);
   
   digitalWrite(n4, HIGH);
   delay(80);
   digitalWrite(n4, LOW);
   delay(150);
   
   digitalWrite(n5, HIGH);
   delay(80);
   digitalWrite(n5, LOW);
   delay(150);
   
   digitalWrite(n6, HIGH);
   delay(80);
   digitalWrite(n6, LOW);
   delay(400);
   
   digitalWrite(n7, HIGH);
   delay(80);
   digitalWrite(n7, LOW);
   delay(150);
   
   digitalWrite(n6, HIGH);
   delay(80);
   digitalWrite(n6, LOW);
   delay(400);
   
   digitalWrite(n6, HIGH);
   delay(80);
   digitalWrite(n6, LOW);
   delay(150);
   
   digitalWrite(n5, HIGH);
   delay(80);
   digitalWrite(n5, LOW);
   delay(150);
   
   digitalWrite(n4, HIGH);
   delay(80);
   digitalWrite(n4, LOW);
   delay(300);
   
   digitalWrite(n4, HIGH);
   delay(80);
   digitalWrite(n4, LOW);
   delay(150);
   
   digitalWrite(n4, HIGH);
   delay(80);
   digitalWrite(n4, LOW);
   delay(150);
   
   digitalWrite(n3, HIGH);
   delay(80);
   digitalWrite(n3, LOW);
   delay(150);
   
   digitalWrite(n5, HIGH);
   delay(80);
   digitalWrite(n5, LOW);
   delay(150);
   
   digitalWrite(n6, HIGH);
   delay(80);
   digitalWrite(n6, LOW);
   delay(400);
   
   digitalWrite(n5, HIGH);
   delay(80);
   digitalWrite(n5, LOW);
   delay(150);
   
   digitalWrite(n4, HIGH);
   delay(80);
   digitalWrite(n4, LOW);
   delay(250);
   
   digitalWrite(n3, HIGH);
   delay(80);
   digitalWrite(n3, LOW);
   delay(400);
   
   digitalWrite(n2, HIGH);
   delay(80);
   digitalWrite(n2, LOW);
   delay(1000);  
   
   tune = 0;
   return;
   }
   
   if (tune == 3) {
    //play scale
  digitalWrite(n1, HIGH);
  delay(80);
  digitalWrite(n1, LOW);
  delay(150);
  
  digitalWrite(n2, HIGH);
  delay(80);
  digitalWrite(n2, LOW);
  delay(150);
  
  digitalWrite(n3, HIGH);
  delay(80);
  digitalWrite(n3, LOW);
  delay(150);
  
  digitalWrite(n4, HIGH);
  delay(80);
  digitalWrite(n4, LOW);
  delay(150);
  
  digitalWrite(n5, HIGH);
  delay(80);
  digitalWrite(n5, LOW);
  delay(150);
  
  digitalWrite(n6, HIGH);
  delay(80);
  digitalWrite(n6, LOW);
  delay(150);
  
  digitalWrite(n7, HIGH);
  delay(80);
  digitalWrite(n7, LOW);
  delay(150);
  
  digitalWrite(n8, HIGH);
  delay(80);
  digitalWrite(n8, LOW);
  delay(150);
   
   tune = 0;
   return;

   }
 
   if (tune == 4) {
    //play tune 4
   digitalWrite(n7, HIGH);
   delay(80);
   digitalWrite(n7, LOW);
   delay(100);
   
   digitalWrite(n8, HIGH);
   delay(80);
   digitalWrite(n8, LOW);
   delay(100);

   digitalWrite(n7, HIGH);
   delay(80);
   digitalWrite(n7, LOW);
   delay(100);
   
   digitalWrite(n7, HIGH);
   delay(80);
   digitalWrite(n7, LOW);
   delay(1000);
   
   tune = 0;
   return;
   }
   
}
}