c++을 이용하여 비프음으로 연주하기 (소리를 낮추세용)

#include <iostream>

#include <windows.h>

using namespace std;

//twinkle twinkle

//CC GG AA G

//FF EE DD C

//GG FF EE D

//GG FF EE D

//CC GG AA G

//FF EE DD C

void playnote (char g, float l)

{

char n = g;

if (n == 'A'||'a'){

Beep(2750,l*1000);

cout <<n;

}

else if(n == 'B'||'b'){

Beep(3087,l*1000);

cout << n;

}

else if(n == 'C'||'c'){

Beep(1637,l*1000);

cout << n;

}

else if(n == 'D'||'d'){

Beep(1835,l*1000);

cout << n;

}

else if(n == 'E'||'e'){

Beep(2060,l*1000);

cout << n;

}

else if(n == 'F'||'f'){

Beep(2183,l*1000);

cout << n;

}

else if(n == 'G'||'g'){

Beep(2450,l*1000);

cout << n;

}

}

int main() {

playnote('C', 0.4);

playnote('C', 0.4);

playnote('G', 0.4);

playnote('G', 0.4);

playnote('A', 0.4);

playnote('A', 0.4);

playnote('G', 0.4);

Sleep(400);

cout<<endl;

playnote('F', 0.4);

playnote('F', 0.4);

playnote('E', 0.4);

playnote('E', 0.4);

playnote('D', 0.4);

playnote('D', 0.4);

playnote('C', 0.4);

Sleep(400);

cout<<endl;

playnote('G', 0.4);

playnote('G', 0.4);

playnote('F', 0.4);

playnote('F', 0.4);

playnote('E', 0.4);

playnote('D', 0.4);

playnote('G', 0.4);

Sleep(400);

cout<<endl;

playnote('G', 0.4);

playnote('F', 0.4);

playnote('F', 0.4);

playnote('E', 0.4);

playnote('D', 0.4);

playnote('C', 0.4);

playnote('C', 0.4);

Sleep(400);

cout<<endl;

playnote('G', 0.4);

playnote('G', 0.4);

playnote('A', 0.4);

playnote('A', 0.4);

playnote('G', 0.4);

playnote('F', 0.4);

playnote('F', 0.4);

Sleep(400);

cout<<endl;

playnote('E', 0.4);

playnote('E', 0.4);

playnote('D', 0.4);

playnote('D', 0.4);

playnote('C', 0.4);

cout<<endl;

cout << "thanks for listening <3";

return 0;

}