From f80c223025aedcfa94c6aed126c3e4e4c1dceb2e Mon Sep 17 00:00:00 2001
From: Ritiek Malhotra <ritiekmalhotra123@gmail.com>
Date: Mon, 1 Oct 2018 19:10:28 +0530
Subject: [PATCH] Embed comment metadata in .m4a

---
 spotdl/const.py    | 3 ++-
 spotdl/metadata.py | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/spotdl/const.py b/spotdl/const.py
index 3e93d06..c9eaf59 100644
--- a/spotdl/const.py
+++ b/spotdl/const.py
@@ -29,7 +29,8 @@ M4A_TAG_PRESET = { 'album'        : '\xa9alb',
                    'albumart'     : 'covr',
                    'copyright'    : 'cprt',
                    'tempo'        : 'tmpo',
-                   'lyrics'       : '\xa9lyr' }
+                   'lyrics'       : '\xa9lyr',
+                   'comment'      : '\xa9cmt' }
 
 TAG_PRESET = {}
 for key in M4A_TAG_PRESET.keys():
diff --git a/spotdl/metadata.py b/spotdl/metadata.py
index d9dcfb1..089016b 100755
--- a/spotdl/metadata.py
+++ b/spotdl/metadata.py
@@ -98,6 +98,7 @@ class EmbedMetadata:
         audiofile = MP4(music_file)
         self._embed_basic_metadata(audiofile, preset=M4A_TAG_PRESET)
         audiofile[M4A_TAG_PRESET['year']] = meta_tags['year']
+        audiofile[M4A_TAG_PRESET['comment']] = meta_tags['external_urls']['spotify']
         if meta_tags['lyrics']:
             audiofile[M4A_TAG_PRESET['lyrics']] = meta_tags['lyrics']
         try: