HBD Music

It's all about the frequencies for the tones. I love music and I love playing music very much. Every tone has a name and every octave starts from (C) and it's equal to (Do) tone. The code below:

void setup() { 
pinMode(8, OUTPUT); 
} 
void loop() { 
// 1. 
// play C4 
tone(10, 261.626, 300); 
delay(350); 
// play C4 
tone(10, 261.626, 300); 
delay(350); 
// play D4 
tone(10, 293.665, 300); 
delay(400); 
// play C4 
tone(10, 261.626, 300); 
delay(300); 
// play F4 
tone(10, 349.228, 300); 
delay(300); 
// play E4 
tone(10, 329.628, 300); 
delay(250); 
// play E4 
tone(10, 329.628, 300); 
delay(100); 
// play E4 
tone(10, 329.628, 300); 
delay(100); 
// play E4 
tone(10, 329.628, 300); 
delay(100); 
delay(800); 
// 2. 
// play C4 
tone(10, 261.626, 300); 
delay(350); 
// play C4 
tone(10, 261.626, 300); 
delay(350); 
// play D4 
tone(10, 293.665, 300); 
delay(350); 
// play C4 
tone(10, 261.626, 300); 
delay(250); 
// play G4 
tone(10, 391.995, 300); 
delay(250); 
// play F4 
tone(10, 349.228, 300); 
delay(250); 
// play F4 
tone(10, 349.228, 300); 
delay(100); 
// play F4 
tone(10, 349.228, 300); 
delay(100); 
// play F4 
tone(10, 349.228, 300); 
delay(100); 
delay(800); 
// 3. 
// play F4 
tone(10, 349.228, 300); 
delay(300); 
// play C5 
tone(10, 523.251, 300); 
delay(300); 
// play A4 
tone(10, 440.000, 300); 
delay(250); 
// play F4 
tone(10, 349.228, 300); 
delay(250); 
// play E4 
tone(10, 329.628, 300); 
delay(250); 
// play D4 
tone(10, 293.665, 300); 
delay(200); 
delay(800); 
// 4. 
// play A4# 
tone(10, 466.164, 300); 
delay(200); 
// play A4# 
tone(10, 466.164, 300); 
delay(200); 
// play A4 
tone(10, 440.000, 300); 
delay(200); 
// play G4 
tone(10, 391.995, 300); 
delay(200); 
// play F4 
tone(10, 349.228, 300); 
delay(200); 
// play G4 
tone(10, 391.995, 300); 
delay(200); 
// play G4 
tone(10, 391.995, 300); 
delay(200); 
delay(10000000); 
}