# cast.[framework](https://developers.google.com/cast/docs/reference/web_receiver/cast.framework).[messages](https://developers.google.com/cast/docs/reference/web_receiver/cast.framework.messages).MusicTrackMediaMetadata

class static

A music track media description.

## Constructor

### MusicTrackMediaMetadata

new
MusicTrackMediaMetadata()

## Properties

### albumArtist

(string or undefined)

The album artist name.

### albumName

(string or undefined)

The album name.

### artist

(string or undefined)

The track artist name.

### artistName

(string or undefined)

The track artist name.

Deprecated
:   Use artist instead.

### composer

(string or undefined)

The track composer name.

### contentRating

<br />

The content rating.

### discNumber

(number or undefined)

The disc number, in integer format.

### images

(non-null Array of non-null [cast.framework.messages.Image](https://developers.google.com/cast/docs/reference/web_receiver/cast.framework.messages.Image) or undefined)

Content images, for example, cover art or a thumbnail of the
currently-playing media.

### releaseDate

(string or undefined)

The date when the track was released, in ISO 8601 format, for example
`2014-02-10`.

### releaseYear

(number or undefined)

The album's release year (as an integer).

Deprecated
:   Use releaseDate instead.

### secondaryImage

(non-null [cast.framework.messages.Image](https://developers.google.com/cast/docs/reference/web_receiver/cast.framework.messages.Image) or undefined)

A secondary image, for example, station logo for currently-
playing media.

### songName

(string or undefined)

The track name.

Deprecated
:   Use title instead.

### title

(string or undefined)

The track title.

### trackNumber

(number or undefined)

The track number in album, in integer format.