public static void TestaaCD()
{
CD cd1 = new CD("Nightwish", "Endless Forms Most Beautiful");
cd1.songs.Add(new Song("Shudder Before the beautiful", "6:29"));
cd1.songs.Add(new Song("Weak Fantasy", "5:23"));
cd1.songs.Add(new Song("Elan", "4:45"));
cd1.songs.Add(new Song("Yours Is an Empty Hope", "5:34"));
cd1.songs.Add(new Song("Our Decades in the Sun", "6:37"));
cd1.songs.Add(new Song("My Walden", "4:38"));
cd1.songs.Add(new Song("Endless Forms Most Beautiful", "5:07"));
cd1.songs.Add(new Song("Edema Ruh", "5:15"));
cd1.songs.Add(new Song("Alpenglow", "4:45"));
cd1.songs.Add(new Song("The Eyes of Sharbat Gula", "6:03"));
cd1.songs.Add(new Song("The Greatest Show on Earth", "24:00"));
Console.WriteLine(cd1.ToString());
}