The group the release is credited to if different than the byArtist. For example, Red and Blue is credited to "Stefani Germanotta Band", but by Lady Gaga.

The catalog number for the release.

The composition this track is a recording of.

The International Standard Recording Code for the recording.

The playlist to which this recording belongs.

The album to which this recording belongs.

The number of tracks in this album or playlist.

A music recording (track)—usually a single song. If an ItemList is given, the list should contain items of type MusicRecording.

A music album.

An audio recording of the work.

The key, mode, or scale this composition uses.

The type of composition (e.g. overture, sonata, symphony, etc.).

An arrangement derived from the composition.

The person who wrote the words.

The International Standard Musical Work Code for the composition.

Smaller compositions included in this work (e.g. a movement in a symphony).

The date and place the work was first performed.

The person or organization who wrote a composition, or who is the composer of a work performed at some event.

The artist that performed this album or recording.

The kind of release which this album is: single, EP or album.

A release of this album.

Classification of the album by its type of content: soundtrack, live album, studio album, etc.

The place or point where a muscle arises.

The underlying innervation associated with the muscle.