Sound Recording asset
A Sound Recording asset represents an audio recording, typically provided by a music label.
The asset has metadata like ISRC, artist, and album, and a reference consisting of an audio master recording. It embeds Composition Share assets representing the musical work embodied in the recording.
YouTube uses Sound Recording assets to make audio-only Content ID claims on user-uploaded videos that include the recordings.
A Sound Recording asset doesn't have a video component of its own. However, it may be embedded in a Music Video asset or Art Track that incorporates the recording.