OptionalissuerThe issuer of this event, as passed into the according API method. 'api' by default if no issuer was specified.
Current playback time (in seconds)
The time at which this event was fired
The affected audio track
Event type, e.g. 'play'
Events which can be triggered by API calls, UI interactions, or player internals. The issuer identifies the origin of the action that triggered the event.