Refactoring code

files/util.py

@@ -0,0 +1,15 @@
+import os
+from typing import Any
+
+import magic
+
+
+def scan_folder(src: str):
+    for (root, dirs, files) in os.walk(top=src):
+        for file in files:
+            yield root + os.sep + file
+
+
+def accepted_file_type(file: Any) -> bool:
+    mime = magic.from_file(file, mime=True)
+    return mime in ('audio/mpeg', 'audio/mp3')