Entity Framework - db structure, 1-to-many and many-to-many

CREATE TABLE [Tag] (
    [Id] [int] IDENTITY(1,1) PRIMARY KEY NOT NULL,
    [Name] [nvarchar](10) NOT NULL)
GO

CREATE TABLE [dbo].[Genre](
    [Id] [int] IDENTITY(1,1) PRIMARY KEY NOT NULL,
    [Name] [nvarchar](256) NOT NULL)
GO

CREATE TABLE [dbo].[Audio](
    [Id] [int] IDENTITY(1,1) PRIMARY KEY NOT NULL,
    [CreatedAt] [datetime2](7) NOT NULL,
    [Title] [nvarchar](256) NOT NULL,
    [GenreId] [int] NOT NULL,
    [Duration] [int] NOT NULL,
    [Url] [nvarchar](256) NULL)
GO

CREATE TABLE [dbo].[AudioTag](
    [Id] [int] IDENTITY(1,1) PRIMARY KEY NOT NULL,
    [AudioId] [int] NOT NULL,
    [TagId] [int] NOT NULL)
GO

ALTER TABLE [dbo].[Audio]
ADD  CONSTRAINT [FK_Audio_Genre]
FOREIGN KEY([GenreId])
REFERENCES [dbo].[Genre] ([Id])
GO

ALTER TABLE [dbo].[AudioTag]
ADD  CONSTRAINT [FK_AudioTag_Audio]
FOREIGN KEY([AudioId])
REFERENCES [dbo].[Audio] ([Id])
GO

ALTER TABLE [dbo].[AudioTag]
ADD  CONSTRAINT [FK_AudioTag_Tag]
FOREIGN KEY([TagId])
REFERENCES [dbo].[Tag] ([Id])
GO