Keyboard 6 keys (pimped p07)

// create an array of notes
// the numbers below correspond to the frequencies of middle C, D, E, F, G and A
int notes[] = {262, 294, 330, 349, 392, 440};

void setup() {
  //start serial communication
  Serial.begin(9600);
}

void loop() {
  // create a local variable to hold the input on pin A0
  int keyVal = analogRead(A0);
  // send the value from A0 to the Serial Monitor
  Serial.println(keyVal);

  // play the note corresponding to each value on A0 (0 Ohm)
  if (keyVal == 1023) {
    // play the first frequency in the array on pin 8
    tone(8, notes[0]);
  } else if (keyVal >= 970 && keyVal <= 1010) {
    // play the second frequency in the array on pin 8 (220 Ohm)
    tone(8, notes[1]);
  } else if (keyVal >= 900 && keyVal <= 920) {
    // play the third frequency in the array on pin 8 (560 Ohm)
    tone(8, notes[2]);
  } else if (keyVal >= 840 && keyVal <= 850) {
    // play the fourth frequency in the array on pin 8 (1 kOhm)
    tone(8, notes[3]);
  } else if (keyVal >= 500 && keyVal <= 520) {
    // play the fourth frequency in the array on pin 8 (4.7 kOhm)
    tone(8, notes[4]);
  } else if (keyVal >= 300 && keyVal <= 350) {
    // play the fourth frequency in the array on pin 8 (10 kOhm)
    tone(8, notes[5]);
  } else {
    // if the value is out of range, play no tone
    noTone(8);
  }
}