diff --git a/static/js/rehearser-training-ui.js b/static/js/rehearser-training-ui.js
index 2d9f709..fa5f126 100644
--- a/static/js/rehearser-training-ui.js
+++ b/static/js/rehearser-training-ui.js
@@ -1,5 +1,6 @@
 // Rehearser training mode state, cue playback, and recording UI.
 // Loaded after train comparison helpers and before rehearser.js; dependencies resolve at call time.
+(function (root) {
 
 // ── Train Mode ────────────────────────────────────────────────────────────
 // State machine: idle → playing_cue → ready → recording → transcribing → done
@@ -332,14 +333,25 @@ function exitTrainMode() {
 }
 
 
-window.TTVC=window.TTVC||{};
-window.TTVC.rehearser=window.TTVC.rehearser||{};
-Object.assign(window.TTVC.rehearser,{
+  root.trainState = trainState;
+  root.buildTrainSeq = buildTrainSeq;
+  root._trainSetState = _trainSetState;
+  root._trainPlayCueLines = _trainPlayCueLines;
+  root.trainGoTo = trainGoTo;
+  root._trainStopMic = _trainStopMic;
+  root._trainStartRecording = _trainStartRecording;
+  root._trainStopRecording = _trainStopRecording;
+  root._trainHideStage = _trainHideStage;
+  root.enterTrainMode = enterTrainMode;
+  root.exitTrainMode = exitTrainMode;
+  root.TTVC=root.TTVC||{};
+  root.TTVC.rehearser=root.TTVC.rehearser||{};
+  Object.assign(root.TTVC.rehearser,{
   training:{
     state:trainState,
     enter:enterTrainMode,
     exit:exitTrainMode,
     goTo:trainGoTo,
   },
-});
-
+  });
+})(window);