void* value pointing to memory set up by your application to contain a fully formatted ID3 tag.
- iOS 2.1+
- macOS 10.6+
- Mac Catalyst 13.0+
- tvOS 9.0+
When setting, this property must be set before calling the
Audio function. This property is gettable and settable when using ID3 version 2. It is gettable only for version ID3 version 1. A sound file’s ID3 tag itself is not manipulated when getting or setting this property.