diff --git a/src/activities/note_names/NoteNames.qml b/src/activities/note_names/NoteNames.qml
--- a/src/activities/note_names/NoteNames.qml
+++ b/src/activities/note_names/NoteNames.qml
@@ -54,7 +54,7 @@
             id: items
             property Item main: activity.main
             property alias background: background
-            property GCAudio audioEffects: activity.audioEffects
+            property GCSfx audioEffects: activity.audioEffects
             property alias staff: staff
             property alias bar: bar
             property alias bonus: bonus
diff --git a/src/activities/piano_composition/Piano_composition.qml b/src/activities/piano_composition/Piano_composition.qml
--- a/src/activities/piano_composition/Piano_composition.qml
+++ b/src/activities/piano_composition/Piano_composition.qml
@@ -105,7 +105,7 @@
             id: items
             property Item main: activity.main
             property alias background: background
-            property GCAudio audioEffects: activity.audioEffects
+            property GCSfx audioEffects: activity.audioEffects
             property alias bar: bar
             property alias bonus: bonus
             property alias staff2: staff2