From 87be1bb96ac47abaaa4cfc6d7dd651e511b74551 Mon Sep 17 00:00:00 2001
From: sepro <sepro@sepr0.com>
Date: Sun, 12 Oct 2025 08:49:15 +0200
Subject: [PATCH] [ie/musescore] Fix extractor (#14598)

Closes #14485
Authored by: seproDev
---
 yt_dlp/extractor/musescore.py | 32 ++++++++++++++++++++------------
 1 file changed, 20 insertions(+), 12 deletions(-)

diff --git a/yt_dlp/extractor/musescore.py b/yt_dlp/extractor/musescore.py
index 0ef2fa0c88..c171e58b3f 100644
--- a/yt_dlp/extractor/musescore.py
+++ b/yt_dlp/extractor/musescore.py
@@ -1,3 +1,5 @@
+import hashlib
+
 from .common import InfoExtractor
 
 
@@ -9,10 +11,10 @@ class MuseScoreIE(InfoExtractor):
             'id': '142975',
             'ext': 'mp3',
             'title': 'WA Mozart Marche Turque (Turkish March fingered)',
-            'description': 'md5:7ede08230e4eaabd67a4a98bb54d07be',
-            'thumbnail': r're:https?://(?:www\.)?musescore\.com/.*\.png[^$]+',
+            'description': 'md5:0ca4cf6b79d7f5868a1fee74097394ab',
+            'thumbnail': r're:https?://cdn\.ustatik\.com/musescore/.*\.jpg',
             'uploader': 'PapyPiano',
-            'creator': 'Wolfgang Amadeus Mozart',
+            'creators': ['Wolfgang Amadeus Mozart'],
         },
     }, {
         'url': 'https://musescore.com/user/36164500/scores/6837638',
@@ -20,10 +22,10 @@ class MuseScoreIE(InfoExtractor):
             'id': '6837638',
             'ext': 'mp3',
             'title': 'Sweet Child O\' Mine  – Guns N\' Roses sweet child',
-            'description': 'md5:4dca71191c14abc312a0a4192492eace',
-            'thumbnail': r're:https?://(?:www\.)?musescore\.com/.*\.png[^$]+',
+            'description': 'md5:2cd49bd6b4e48a75a3c469d4775d5079',
+            'thumbnail': r're:https?://cdn\.ustatik\.com/musescore/.*\.png',
             'uploader': 'roxbelviolin',
-            'creator': 'Guns N´Roses Arr. Roxbel Violin',
+            'creators': ['Guns N´Roses Arr. Roxbel Violin'],
         },
     }, {
         'url': 'https://musescore.com/classicman/fur-elise',
@@ -31,22 +33,28 @@ class MuseScoreIE(InfoExtractor):
             'id': '33816',
             'ext': 'mp3',
             'title': 'Für Elise – Beethoven',
-            'description': 'md5:49515a3556d5ecaf9fa4b2514064ac34',
-            'thumbnail': r're:https?://(?:www\.)?musescore\.com/.*\.png[^$]+',
+            'description': 'md5:e37b241c0280b33e9ac25651b815d06e',
+            'thumbnail': r're:https?://cdn\.ustatik\.com/musescore/.*\.jpg',
             'uploader': 'ClassicMan',
-            'creator': 'Ludwig van Beethoven (1770–1827)',
+            'creators': ['Ludwig van Beethoven (1770–1827)'],
         },
     }, {
         'url': 'https://musescore.com/minh_cuteee/scores/6555384',
         'only_matching': True,
     }]
 
+    @staticmethod
+    def _generate_auth_token(video_id):
+        return hashlib.md5((video_id + 'mp30gs').encode()).hexdigest()[:4]
+
     def _real_extract(self, url):
         webpage = self._download_webpage(url, None)
         url = self._og_search_url(webpage) or url
         video_id = self._match_id(url)
-        mp3_url = self._download_json(f'https://musescore.com/api/jmuse?id={video_id}&index=0&type=mp3&v2=1', video_id,
-                                      headers={'authorization': '63794e5461e4cfa046edfbdddfccc1ac16daffd2'})['info']['url']
+        mp3_url = self._download_json(
+            'https://musescore.com/api/jmuse', video_id,
+            headers={'authorization': self._generate_auth_token(video_id)},
+            query={'id': video_id, 'index': '0', 'type': 'mp3'})['info']['url']
         formats = [{
             'url': mp3_url,
             'ext': 'mp3',
@@ -57,7 +65,7 @@ def _real_extract(self, url):
             'id': video_id,
             'formats': formats,
             'title': self._og_search_title(webpage),
-            'description': self._og_search_description(webpage),
+            'description': self._html_search_meta('description', webpage, 'description'),
             'thumbnail': self._og_search_thumbnail(webpage),
             'uploader': self._html_search_meta('musescore:author', webpage, 'uploader'),
             'creator': self._html_search_meta('musescore:composer', webpage, 'composer'),