+            headers = {}
+            cn_verification_proxy = self._downloader.params.get('cn_verification_proxy')
+            if cn_verification_proxy:
+                headers['Ytdl-request-proxy'] = cn_verification_proxy
+
+            query = {
+                'format': file_format['ext'],
+                'br': file_format.get('br', ''),
+                'rid': 'MUSIC_%s' % song_id,
+                'type': 'convert_url',
+                'response': 'url'
+            }
+