diff --git a/Global/Global.c b/Global/Global.c
index fb9dcaf..205f392 100644
--- a/Global/Global.c
+++ b/Global/Global.c
@@ -1254,8 +1254,15 @@ uint8_t GetChordNotesByType(uint8_t MIDI_Index,uint8_t type,uint8_t *buff)
 void Read_Cur_Measure()
 {
   uint32_t now = rt_tick_get();
-  static uint32_t last_tick_i = 0;;
-  if((mGuiData[GUI_TAB_INDEX].Current == 2 || (mGuiData[GUI_TAB_LAST_INDEX].Current == 2 && mGuiData[GUI_TAB_INDEX].Current == 3))  && StartFlag)
+  static uint32_t last_tick_i = 0;
+  uint8_t tab = (uint8_t)mGuiData[GUI_TAB_INDEX].Current;
+  uint8_t last = (uint8_t)mGuiData[GUI_TAB_LAST_INDEX].Current;
+  /* 普通(2)与万能(0)均按「和弦走向」同步亮灯；设置页(3)沿用进入前模式 */
+  uint8_t loop_light_ok =
+      (tab == 0 || tab == 2) ||
+      (tab == 3 && (last == 0 || last == 2));
+
+  if (loop_light_ok && StartFlag)
   {
      if(now - last_tick_i >= 10)
      {