public function moveTrack(int $from, int $to): PlaylistInterface
    {
        $data = $this->soap("AVTransport", "ReorderTracksInSavedQueue", [
            "UpdateID"              =>  $this->getUpdateID(),
            "TrackList"             =>  (string) $from,
            "NewPositionList"       =>  (string) $to,
        ]);
        $this->updateId = $data["NewUpdateID"];

        return $this;
    }