diff --git a/yt_dlp/__init__.py b/yt_dlp/__init__.py
index 025b97a315..57a4871575 100644
--- a/yt_dlp/__init__.py
+++ b/yt_dlp/__init__.py
@@ -670,11 +670,6 @@ def get_postprocessors(opts):
             'add_metadata': opts.addmetadata,
             'add_infojson': opts.embed_infojson,
         }
-    # MutagenMetadata must run after FFmpegMetadata
-    if opts.addmetadata:
-        yield {
-            'key': 'MutagenMetadata',
-        }
     # Deprecated
     # This should be above EmbedThumbnail since sponskrub removes the thumbnail attachment
     # but must be below EmbedSubtitle and FFmpegMetadata
diff --git a/yt_dlp/postprocessor/__init__.py b/yt_dlp/postprocessor/__init__.py
index e96a015e60..bfe9df733b 100644
--- a/yt_dlp/postprocessor/__init__.py
+++ b/yt_dlp/postprocessor/__init__.py
@@ -30,7 +30,6 @@ from .metadataparser import (
 )
 from .modify_chapters import ModifyChaptersPP
 from .movefilesafterdownload import MoveFilesAfterDownloadPP
-from .mutagenmetadata import MutagenMetadataPP
 from .sponskrub import SponSkrubPP
 from .sponsorblock import SponsorBlockPP
 from .xattrpp import XAttrMetadataPP
diff --git a/yt_dlp/postprocessor/mutagenmetadata.py b/yt_dlp/postprocessor/mutagenmetadata.py
deleted file mode 100644
index 7a2925ed88..0000000000
--- a/yt_dlp/postprocessor/mutagenmetadata.py
+++ /dev/null
@@ -1,42 +0,0 @@
-from .common import PostProcessor
-from ..dependencies import mutagen
-
-if mutagen:
-    from mutagen.easymp4 import EasyMP4
-    from mutagen.flac import FLAC
-    from mutagen.mp3 import EasyMP3
-    from mutagen.musepack import Musepack
-    from mutagen.oggopus import OggOpus
-    from mutagen.oggvorbis import OggVorbis
-
-
-class MutagenMetadataPP(PostProcessor):
-    def __init__(self, downloader):
-        PostProcessor.__init__(self, downloader)
-
-    @PostProcessor._restrict_to(images=False)
-    def run(self, information):
-        extension = information['ext']
-        ret = [], information
-        if not mutagen:
-            if extension in ['mp3', 'm4a', 'ogg', 'opus', 'flac', '.mpc']:
-                self.report_warning('module mutagen was not found. Tags with multiple values (e.g. artist, album artist and genre) may be set incorrectly. Please install using `python -m pip install mutagen`')
-            return ret
-        tag_mapping = {
-            'artist': 'artists',
-            'albumartist': 'album_artists',
-            'genre': 'genres',
-            'composer': 'composers'
-        }
-        supported_formats = [EasyMP3, EasyMP4, OggVorbis, OggOpus, FLAC, Musepack]
-        file = mutagen.File(information['filepath'], supported_formats)
-        if not file:
-            return ret
-        if isinstance(file, EasyMP4):
-            file.RegisterTextKey('composer', '\251wrt')
-        for tag_key, info_key in tag_mapping.items():
-            value = information.get(info_key)
-            if value:
-                file[tag_key] = value
-        file.save()
-        return ret