static void Main(string[] args) { ConsoleKeyInfo key; Console.WriteLine("----------- Play music App -----------"); Console.WriteLine("<Up>-Scale, <Down>-HappyBirthday, <Left>-Tetris, <Right>-Random"); while (true) { Console.WriteLine("\n Press an <Arrow> key or <Esc> to exit: "); key = Console.ReadKey(); switch (key.Key) { case ConsoleKey.UpArrow: PlayMusic.PlayScale(); break; case ConsoleKey.DownArrow: PlayMusic.PlayHappyBirthday(); break; case ConsoleKey.LeftArrow: PlayMusic.PlayTetris(); break; case ConsoleKey.RightArrow: PlayMusic.PlayRandom(); break; case ConsoleKey.Escape: return; } } }