using static System.Console;

public class Program

{

    public static void Main()

    {

        Music music=Music.Get();

        var title=music?.Title ?? "no title";

        var singer=music?.Singer?.Name ?? "no singer";

        WriteLine(title);

        WriteLine(singer);

    }

}

​

class Music

{

    public string Title {get;set;}

    public Singer Singer {get;set;}

    public static Music Get()

    {

        return null;

    }

}

​

class Singer

{

    public string Name {get;set;}

}