diff --git a/Global/Global.c b/Global/Global.c
index edb12a0..1862b6e 100644
--- a/Global/Global.c
+++ b/Global/Global.c
@@ -105,7 +105,7 @@ int16_t MIC_VOL_MAP[11]= {-9000,-7000,-5000,-3000,-1000,1000,3000,5000,7000,9000
 
 uint8_t TOUCH_AREA_NUM = (sizeof(Touch_Areas)/sizeof(Touch_AreaTypeDef));
 
-const uint8_t Version[3] = {0,2,21}; /* major.minor.patch — 0.2.21: 问题2 曲目LED不再改写和弦映射(6m/Am 不再变 AM7); 和弦读回编码 m7/M7/ad9/sus 修正, 属七兼容 0x0D */
+const uint8_t Version[3] = {0,2,22}; /* major.minor.patch — 0.2.22: 普通/专业模式前奏间奏尾奏断奏即刻切入；万能模式忽略这四键 */
 uint8_t Led = 8;
 bool PressFlag = 0;
 
@@ -664,14 +664,52 @@ void Accomp_UpdatePlayingChord(void)
 /* 尾奏期间冻结走向灯：保持全绿，避免 LOOP_LIGHT 按小节刷红 */
 static uint8_t s_outro_led_all_green = 0;
 
+/* libAutoBand m_ABSystem：+0x59 舞台，+0x50 小节相位。
+ * 前奏挂起舞台 0x0E、尾奏挂起舞台 0x0B 都要等相位对上小节线才真正切入。 */
+extern uint8_t m_ABSystem[];
+#define AB_STAGE_OFF        0x59u
+#define AB_BAR_PHASE_OFF    0x50u
+#define AB_STAGE_PRE_WAIT   0x0Eu
+#define AB_STAGE_POST_WAIT  0x0Bu
+#define AB_STAGE_POST       0x0Cu
+
+static void FreeMode_CancelEvenBeatStop(void);
+
+static void Accomp_FireSectionNotes(void)
+{
+  uint8_t midi_note_buff[4] = {0,};
+  uint8_t note_cnt;
+  uint8_t i;
+
+  note_cnt = GetChordNotesByType(KEY_ID_1629,
+                                 chord_type_index_map[KEY_ID_1629].type,
+                                 midi_note_buff);
+  for (i = 0; i < note_cnt; i++)
+    AutoBandTop1_Note_On(midi_note_buff[i], 0x50);
+}
+
+/* 已在播：不要等下一小节。落到挂起舞台并把相位清零，下一毫秒 tick 即切入。 */
+static void Accomp_PreambleCutNow(void)
+{
+  m_ABSystem[AB_STAGE_OFF] = AB_STAGE_PRE_WAIT;
+  *(volatile uint32_t *)(m_ABSystem + AB_BAR_PHASE_OFF) = 0;
+}
+
+static void Accomp_PostambleCutNow(void)
+{
+  if (m_ABSystem[AB_STAGE_OFF] != AB_STAGE_POST)
+    m_ABSystem[AB_STAGE_OFF] = AB_STAGE_POST_WAIT;
+  *(volatile uint32_t *)(m_ABSystem + AB_BAR_PHASE_OFF) = 0;
+}
+
 /* 尾奏起奏：Postamble(0) + 同步起奏 + 当前和弦 Note_On。
  * 供 ADC 独立尾奏键与万能模式第4段落键共用。
  * 万能走 piece 循环，须先退出 piece，否则 Postamble 舞台切不过去；
- * 尾奏 MIDI 须由音师写入 3.bin（见 Doc/音师需求_万能3.bin尾奏_20260914.md）。 */
+ * 尾奏 MIDI 须由音师写入 3.bin（见 Doc/音师需求_万能3.bin尾奏_20260914.md）。
+ * 已在播时清小节相位，避免库把尾奏挂到下一小节线。 */
 void AutoBand_StartOutro(void)
 {
-  uint8_t midi_note_buff[4] = {0,};
-  uint8_t note_cnt = 0;
+  uint8_t was_playing = StartFlag;
 
   if (KEY_ID_1629 == 0 || KEY_ID_1629 == 22 || KEY_ID_1629 == 23)
     Accomp_ApplyDefaultIChord();
@@ -684,23 +722,32 @@ void AutoBand_StartOutro(void)
   app_tm1629_all_on(LED_COLOR_G);
   /* 尾奏起奏前补发主音量，保证与图标一致 */
   MasterVolume_Reapply();
-  Band_SyncStartRetry();
-  wk_delay_ms(50);
-  note_cnt = GetChordNotesByType(KEY_ID_1629,chord_type_index_map[KEY_ID_1629].type,midi_note_buff);
-  for(uint8_t i = 0;i < note_cnt;i++)
+  if (was_playing)
+    Accomp_PostambleCutNow();
+  else
   {
-    AutoBandTop1_Note_On(midi_note_buff[i],0x50);
+    Band_SyncStartRetry();
+    wk_delay_ms(50);
   }
+  Accomp_FireSectionNotes();
 }
 
 void ADC_IN1_KEY_Handle(uint8_t key,bool on)
 {
-  uint8_t midi_note_buff[4] = {0,};
-  uint8_t note_cnt = 0;
   uint8_t is_preamble = 0;
+  uint8_t is_postamble = 0;
+  uint8_t was_playing;
+
+  (void)on;
+  /* 万能：前奏/间奏/尾奏/断奏无响应（含 App 06 指令） */
+  if (mGuiData[GUI_TAB_INDEX].Current == 0)
+    return;
+
   key_toggle[key] = !key_toggle[key];
   if(key_toggle[key] == 1)
   {
+      was_playing = StartFlag;
+      FreeMode_CancelEvenBeatStop();
       //ResetAutoPowerCount();
       if(key == 1)
       {
@@ -714,7 +761,12 @@ void ADC_IN1_KEY_Handle(uint8_t key,bool on)
           {
               case 3: AutoBandTop1_Preamble(0);  is_preamble = 1; break;
               case 0: AutoBandTop1_Preamble(1);  is_preamble = 1; break;
-              case 2: AutoBandTop1_Postamble(1); break;
+              case 2:
+                  /* 断奏同尾奏：piece 循环里 Postamble 切不过去 */
+                  AutoBandTop1_SetPiecePlayMode(0, 0, 0);
+                  AutoBandTop1_Postamble(1);
+                  is_postamble = 1;
+                  break;
           }
           /* 前奏：须在 SyncStart 前落到当前调一级，否则前 50ms 伴奏按旧把位进 */
           if (is_preamble)
@@ -723,14 +775,19 @@ void ADC_IN1_KEY_Handle(uint8_t key,bool on)
               Accomp_ApplyDefaultIChord();
           /* 前奏/断奏起奏前补发主音量，保证与图标一致 */
           MasterVolume_Reapply();
-          //AutoBandTop1_Start();
-          Band_SyncStartRetry();
-          wk_delay_ms(50);
-          note_cnt = GetChordNotesByType(KEY_ID_1629,chord_type_index_map[KEY_ID_1629].type,midi_note_buff);
-          for(uint8_t i = 0;i < note_cnt;i++)
+          if (was_playing)
           {
-            AutoBandTop1_Note_On(midi_note_buff[i],0x50);
+              if (is_preamble)
+                  Accomp_PreambleCutNow();
+              else if (is_postamble)
+                  Accomp_PostambleCutNow();
           }
+          else
+          {
+              Band_SyncStartRetry();
+              wk_delay_ms(50);
+          }
+          Accomp_FireSectionNotes();
           if (is_preamble)
               StartFlag = 1;
       }
diff --git a/tools/publish_k1_release.py b/tools/publish_k1_release.py
index 45d52b3..75ef9ad 100644
--- a/tools/publish_k1_release.py
+++ b/tools/publish_k1_release.py
@@ -38,7 +38,7 @@ TONE_HDR = PROJ / "project" / "inc" / "ExtFlash_Tone_Addr.h"
 IAP_DIR = REPO / "升级" / "MCU主控升级"
 OUT_ROOT = REPO / "tools" / "out"
 
-FW_VER = "0.2.21"
+FW_VER = "0.2.22"
 UI0902_RES_BASE = 0x00100000
 BOOT_FLASH_ADDR = 0x08000000
 APP_FLASH_ADDR = 0x08008000