diff --git a/mv3u.py b/mv3u.py
new file mode 100644
index 0000000..3c88538
--- /dev/null
+++ b/mv3u.py
@@ -0,0 +1,31 @@
+from beets.plugins import BeetsPlugin
+import os
+
+
+class MV3U(BeetsPlugin):
+    def __init__(self):
+        super(MV3U, self).__init__()
+
+        self.register_listener('item_moved', self.mv3u)
+
+
+    def mv3u(self, item):
+        # TODO: cache renames, don’t write playlists for every single file
+        # TODO: sorted caching
+        src = item.path.decode()
+        dst = item.destination().decode()
+
+        playlist_dir = self.config['playlists'].get()
+        
+        if not playlist_dir:
+            return
+
+        for pl in os.listdir(playlist_dir):
+            pl = os.path.join(playlist_dir, pl)
+            p2 = None
+            with open(pl, 'r') as p:
+                p2 = [l.replace(src, dst) for l in p]
+            with open(pl, 'w') as p:
+                p.write(''.join(p2))
+            #print(f'Changed entry {src} to {dst} in {pl}')
+