diff --git a/Global/Global.c b/Global/Global.c
index 1b177cb..78e2925 100644
--- a/Global/Global.c
+++ b/Global/Global.c
@@ -693,20 +693,27 @@ void TM1629_Handle(uint8_t key)
 
   switch(key)
   {
-    case 0:  
+    case 0:
         PressFlag = 0;
-        if(/*StartFlag &&*/ mGuiData[GUI_TAB_INDEX].Current == 0)
+        if(mGuiData[GUI_TAB_INDEX].Current == 2)
+        {
+            /* 普通：松手立即结束当前和弦伴奏 */
+            KEY_ID_1629 = 0;
+            if (StartFlag)
+                Stop_AutoBand();
+        }
+        else if(mGuiData[GUI_TAB_INDEX].Current == 0)
         {
                 //StartFlag = 0;
                 //tick_ever_positive = false;
                 //osTimerStart(Delay_stop_timer,1000);
                 rt_timer_start(OutTime_Stop_timer);
-        } 
+        }
     break;
     case 22:Tap_to_Speed();   break;
     case 23:Stop_AutoBand();  break;
-    default: // 1 - 21 
-      if (key >= 1 && key <= 21) 
+    default: // 1 - 21
+      if (key >= 1 && key <= 21)
       {
         if(mGuiData[GUI_TAB_INDEX].Current == 0)
         {
@@ -714,6 +721,11 @@ void TM1629_Handle(uint8_t key)
                 rt_timer_stop(OutTime_Stop_timer);
                 //osTimerStop(Delay_stop_timer);
         }
+        else if(mGuiData[GUI_TAB_INDEX].Current == 2)
+        {
+                /* 普通：按住指板，等待拨片起奏当前和弦 */
+                PressFlag = 1;
+        }
         uint8_t group = (key - 1) / 3;          /* 1~3→0, 4~6→1, ..., 19~21→6 */
         KEY_ID_1629 = key;
         MIDI        = (STRING_MIDI *)Chord_Midi_Table[group];
@@ -802,8 +814,10 @@ void Pick_Handle()
   uint8_t note_cnt = 0;
   uint8_t chord_id = KEY_ID_1629;
 
-  /* 左手未触发和弦板（或落在拍速/停止键）时：拨片默认发当前调一级大和弦伴奏 */
-  if (chord_id == 0 || chord_id == 22 || chord_id == 23)
+  /* 左手未触发和弦板（或落在拍速/停止键）时：拨片默认发当前调一级大和弦伴奏；
+   * 普通模式除外——必须左手按住指板再拨，不做一级兜底 */
+  if (mGuiData[GUI_TAB_INDEX].Current != 2 &&
+      (chord_id == 0 || chord_id == 22 || chord_id == 23))
   {
     KEY_ID_1629 = 1;
     chord_type_index_map[1].type = 0;
@@ -848,21 +862,20 @@ void Pick_Handle()
       break;
 
       case 2:
-          /* 普通：节奏/本地曲目均用 StartWithNote；切库后允许再次拨片起奏 */
-          if (StartFlag == 0 || mGuiData[GUI_AUTOBAND_SW].Current)
-          {
-              StartFlag = 1;
-              AutoBandTop1_Stop();
-              AutoBandTop1_SetLoopMode(0,1);
-              AutoBandTop1_SetRunVar(mGuiData[GUI_PLAY_SECTION].Current);
-              /* 起调必须用 0x3C+移调；勿用和弦音区 MIDI（如 48），否则本地曲目起奏异常 */
-              midi = 0x3C + mGuiData[GUI_TRANSPOSE].Current;
-              AutoBandTop1_StartWithNote(midi);
-              AutoBandTop1_StartWithNotes(midi_note_buff, note_cnt);
-              if (mGuiData[GUI_AUTOBAND_SW].Current)
-                  LOG_I("pick", "local/normal root=%u name=%s", midi,
-                        AutoBandTop1_GetPresetName() ? AutoBandTop1_GetPresetName() : "?");
-          }
+          /* 普通：左手按住指板 + 拨片起奏当前和弦；松手由 TM1629 停 */
+          if (PressFlag == 0 || chord_id == 0 || chord_id > 21)
+              break;  /* 未按指板：不响、不兜底一级 */
+          StartFlag = 1;
+          AutoBandTop1_Stop();
+          AutoBandTop1_SetLoopMode(0,1);
+          AutoBandTop1_SetRunVar(mGuiData[GUI_PLAY_SECTION].Current);
+          /* 起调必须用 0x3C+移调；勿用和弦音区 MIDI（如 48），否则本地曲目起奏异常 */
+          midi = 0x3C + mGuiData[GUI_TRANSPOSE].Current;
+          AutoBandTop1_StartWithNote(midi);
+          AutoBandTop1_StartWithNotes(midi_note_buff, note_cnt);
+          if (mGuiData[GUI_AUTOBAND_SW].Current)
+              LOG_I("pick", "local/normal root=%u name=%s", midi,
+                    AutoBandTop1_GetPresetName() ? AutoBandTop1_GetPresetName() : "?");
       break;
 
       case 1: