diff --git a/docs/changelog.rst b/docs/changelog.rst
index a619b05..953810b 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -10,6 +10,8 @@ Upcoming
     the codebase with ``ruff``.
 - Moved changelog into its own file, ``changelog.rst``. Also added github workflow
     for automatic changelog reminders.
+- Added TSO2 tag to albumartist_sort, matching how Picard >= 1.2, iTunes and
+    Swinsian interpret tags.
 
 v0.13.0
 '''''''
diff --git a/mediafile.py b/mediafile.py
index 03df854..dfc9fae 100644
--- a/mediafile.py
+++ b/mediafile.py
@@ -1949,6 +1949,7 @@ def as_dict(self):
         ASFStorageStyle("WM/ArtistSortOrder"),
     )
     albumartist_sort = MediaField(
+        MP3StorageStyle("TSO2"),
         MP3DescStorageStyle("ALBUMARTISTSORT"),
         MP4StorageStyle("soaa"),
         StorageStyle("ALBUMARTISTSORT"),