     }
     
     func redisplayHeldKeys() {
+        
+        guard !monoMode else {
+            turnOffHeldKeys()
+            return
+        }
         
         // Refresh keyboard
         updateAllKeysToUpPosition()

    // Universal
    @IBAction func midiPanicPressed(sender: RoundedButton) {
        turnOffHeldKeys()
        conductor.core.panic()
        statusLabel.text = "All Notes Off"
    }
    

        
        if holdMode && monoMode {
           toggleMonoKeyHeld(key)
        } else if holdMode && !monoMode {
            toggleKeyHeld(key)
            
