v1.0 item attributes

For v1.0, the items array has the attributes described below:

Attribute	Type	Description
`itemId`	string	The queue ID of the track that played.
`trackUrl`	string	The URL of the track that played.
`durationPlayedMillis`	number	Total duration of playback, in milliseconds. This is cumulative including any scrub or seek operations within the track during a single playback, so this value can be greater than the duration of the track.
`timeSincePlaybackMillis`	number	The time, in milliseconds, since this item began playback. This value gives the music service provider a reference for when playback started. This value reports the delta between when playback began and the `/timePlayed` message was posted. This can be different from `durationPlayedMillis` due to pausing and resuming.

Example

One or more arrays of items:

{
  “items”: [
    {
      "kind": "musicqueue#itemPlayedData",
      "itemId": "Track12345",
      "trackUrl": "http://example.com/track12345.mp3",
      "durationPlayedMillis": 240000,
      "timeSincePlaybackMillis": 360000
    }
    ,
    {
      "kind": "musicqueue#itemPlayedData",
      "itemId": "Track12346",
      "trackUrl": "http://example.com/track12346.mp3",
      "durationPlayedMillis": 180000,
      "timeSincePlaybackMillis": 600000
    }
  ]
}