diff --git a/properties.py b/properties.py
index 991bdc1..ad10b8b 100644
--- a/properties.py
+++ b/properties.py
@@ -87,6 +87,8 @@ class MetaDataTypes(PropertyGroup):
 class MetaData(PropertyGroup):
     
     notes : StringProperty()
+    ambiance : StringProperty()
+    fx_compo : StringProperty()
 
     def __iter__(self):
         return (getattr(self, k) for k in self.keys())