diff --git a/youtube_dlc/extractor/la7.py b/youtube_dlc/extractor/la7.py
index f5d4564faf..74b006fb50 100644
--- a/youtube_dlc/extractor/la7.py
+++ b/youtube_dlc/extractor/la7.py
@@ -36,6 +36,9 @@ class LA7IE(InfoExtractor):
     def _real_extract(self, url):
         video_id = self._match_id(url)
 
+        if not url.startswith('http'):
+            url = '%s//%s' % (self.http_scheme(), url)
+
         webpage = self._download_webpage(url, video_id)
 
         player_data = self._search_regex(
diff --git a/youtube_dlc/extractor/youtube.py b/youtube_dlc/extractor/youtube.py
index 025ea5e575..3ec2581dc8 100644
--- a/youtube_dlc/extractor/youtube.py
+++ b/youtube_dlc/extractor/youtube.py
@@ -2631,6 +2631,12 @@ class YoutubePlaylistIE(YoutubePlaylistBaseInfoExtractor):
     _VIDEO_RE_TPL = r'href="\s*/watch\?v=%s(?:&amp;(?:[^"]*?index=(?P<index>\d+))?(?:[^>]+>(?P<title>[^<]+))?)?'
     _VIDEO_RE = _VIDEO_RE_TPL % r'(?P<id>[0-9A-Za-z_-]{11})'
     IE_NAME = 'youtube:playlist'
+    _YTM_PLAYLIST_PREFIX = 'RDCLAK5uy_'
+    _YTM_CHANNEL_INFO = {
+        'uploader': 'Youtube Music',
+        'uploader_id': 'music',  # or "UC-9-kyTW8ZkZNDHQJ6FgpwQ"
+        'uploader_url': 'https://www.youtube.com/music'
+    }
     _TESTS = [{
         'url': 'https://www.youtube.com/playlist?list=PL4lCao7KL_QFVb7Iudeipvc2BCavECqzc',
         'info_dict': {
@@ -2940,6 +2946,8 @@ def _extract_playlist(self, playlist_id):
             'uploader_id': uploader_id,
             'uploader_url': uploader_url,
         })
+        if playlist_id.startswith(self._YTM_PLAYLIST_PREFIX):
+            playlist.update(self._YTM_CHANNEL_INFO)
 
         return has_videos, playlist
 
@@ -2970,8 +2978,10 @@ def _real_extract(self, url):
             return video
 
         if playlist_id.startswith(('RD', 'UL', 'PU')):
-            # Mixes require a custom extraction process
-            return self._extract_mix(playlist_id)
+            if not playlist_id.startswith(self._YTM_PLAYLIST_PREFIX):
+                # Mixes require a custom extraction process,
+                # Youtube Music playlists act like normal playlists (with randomized order)
+                return self._extract_mix(playlist_id)
 
         has_videos, playlist = self._extract_playlist(playlist_id)
         if has_videos or not video_id: