response['track'] = {}
response['track']['start_datetime'] = self.current_track_start_datetime.strftime('%Y-%m-%d %H:%M:%S')
response['track']['title'] = track.title
+ response['track']['artist'] = track.artist.name if track.artist_id else ''
response['track']['duration'] = track.duration.total_seconds()
response['track']['elapsed'] = (datetime.datetime.now() - self.current_track_start_datetime).total_seconds()
response['track']['remaining'] = (track.duration - datetime.timedelta(seconds=response['track']['elapsed'])).total_seconds()