+            playlist_id)
+
+        playlist = mu['pageData']['playlist']
+        tracks, track_ids = playlist['tracks'], playlist['trackIds']
+
+        # tracks dictionary shipped with webpage is limited to 150 tracks,
+        # missing tracks should be retrieved manually.
+        if len(tracks) < len(track_ids):
+            present_track_ids = set([compat_str(track['id']) for track in tracks if track.get('id')])
+            missing_track_ids = set(map(compat_str, track_ids)) - set(present_track_ids)
+            request = sanitized_Request(
+                'https://music.yandex.ru/handlers/track-entries.jsx',
+                compat_urllib_parse.urlencode({
+                    'entries': ','.join(missing_track_ids),
+                    'lang': mu.get('settings', {}).get('lang', 'en'),
+                    'external-domain': 'music.yandex.ru',
+                    'overembed': 'false',
+                    'sign': mu.get('authData', {}).get('user', {}).get('sign'),
+                    'strict': 'true',
+                }).encode('utf-8'))
+            request.add_header('Referer', url)
+            request.add_header('X-Requested-With', 'XMLHttpRequest')
+
+            missing_tracks = self._download_json(
+                request, playlist_id, 'Downloading missing tracks JSON', fatal=False)
+            if missing_tracks:
+                tracks.extend(missing_tracks)