How Entity framework works with lambda in ASP.NET MVC

I am walking through Mvc Music Store tutorial from www.ASP.net website.

I have problem understanding how Entity Framework has created tables and how those lambda expressions work altogether. I do know basics of EF and Lambda and I have done previous tutorials in this series.

My question is related to Part 4 of the tutorial : Part 4: Models and Data Access There are three classes in Model: Artist, Genre and Album as below.

public class Artist
{
    public int ArtistId { get; set; }
    public string Name { get; set; }
}
public partial class Genre
{
    public int      GenreId     { get; set; }
    public string   Name        { get; set; }
    public string   Description { get; set; }
    public List<Album> Albums   { get; set; }
}
public class Album
{
    public int      AlbumId     { get; set;}
    public int      GenreId     { get; set; }
    public int      ArtistId    { get; set; }
    public string   Title       { get; set; }
    public decimal  Price       { get; set; }
    public string   AlbumArtUrl { get; set; }
    public Genre    Genre       { get; set; }
    public Artist   Artist      { get; set; }
}

However I saw only following columns of each table created by EF.

Artist table: ArtistId, Name

Genre table: GenreId, Name, Description

Album table: AlbumId, GenreId, ArtistId, Title, Price, AlbumArtUrl

Confusion one

Artist table is fine, but Genre table has nothing about List<Album> Albums from the class definition. In Album table public Genre Genre and public Artist Artist is missing.

Below is a statement to add default data to database in SampleData.cs file

new Album 
{ 
    Title = "A Copland Celebration, Vol. I", 
    Genre = genres.Single(g => g.Name == "Classical"), 
    Price = 8.99M, 
    Artist = artists
        .Single(a => a.Name == "Aaron Copland & London Symphony Orchestra"), 
    AlbumArtUrl = "/Content/Images/placeholder.gif" 
}

Question

Now there aren't any fields with names like Genre and Artist in the database table?? GenreId and ArtistId are not inserted but the Album table in database is populated with those values. ???

Confusion two

In Browse action method of StoreController,

// Retrieve Genre and its Associated Albums from database
var genreModel = storeDB.Genres.Include("Albums").Single(g => g.Name == genre);

I dont know how include works here. There is List of Albums field in Genres model class but not in database. I can guess that include() might save list of album there.

Question

But I dont understand why there is "Albums" parameter to Include method? There are two list of Albums one in Genre model class and the other in the class derived from DbContext for EF. How this statement will return only Albums with matching Genre??

Any help is appreciated. Thanks