diff --git a/Global/Global.c b/Global/Global.c
index 599cbaf..aaa75cb 100644
--- a/Global/Global.c
+++ b/Global/Global.c
@@ -16,7 +16,7 @@ GUI_SWITCH  mGuiData[] = {
     {  0,     0,       11,    GUI_TRANSPOSE},      // 0
     {  78,    40,     260,    GUI_SPEED},          // 1
     {   0,     0,       1,    GUI_MODE_PARAM},    // 2 ?? �Զ����࿪�� 0=�� 1=��
-    {   0,     0,       4,    GUI_TIMBRE_SELECT},  // 3
+    {   TIMBRE_BOOT_SLOT, 0, 4, GUI_TIMBRE_SELECT},  // 3 Bank1 的 25 号
     {   0,     0,       3,    GUI_PLAY_SECTION},   // 4
     {   0,     0,       3,    GUI_TAB_INDEX},      // 5
     {   0,     0,       1,    GUI_AUTOBAND_SW},    // 6 ?? �Զ����࿪�� 0=�� 1=��
@@ -111,7 +111,7 @@ 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] = {0,2,41}; /* major.minor.patch — 0.2.41: AutoBand Stop 时间轴前推 */
+const uint8_t Version[3] = {0,2,42}; /* major.minor.patch — 0.2.42: 开机弦音色固定 Bank1/25 */
 uint8_t Led = 8;
 bool PressFlag = 0;
 
@@ -236,15 +236,9 @@ void System_PowerOn(void)
   /* 软关机不复位 MCU：清掉上次会话演奏状态，默认当前调一级大和弦（C 调=do mi sol） */
   StartFlag = 0;
   InModeFlag = false; /* 停在模式选择，禁止拨片/侧面键起奏 */
-  /* 节奏类型、弦音色不记忆：再次开机进入模式时用第一首、第一个音色 */
-  mGuiData[GUI_TIMBRE_SELECT].Current = 0;
-  ParamGuiData[SONG_MODE_PARAM].Current = 0;
-  mGuiData[GUI_AUTOBAND_SW].Current = 0;
-  {
-    NvmParam_Type *nvm = drv_nvm_param_ptr();
-    nvm->param.Timbre = 0;
-    nvm->param.Param1 = 0;
-  }
+  /* 弦音色不记忆。节奏类型留在 RAM/NVM，软开关机后仍是上次选择 */
+  mGuiData[GUI_TIMBRE_SELECT].Current = TIMBRE_BOOT_SLOT;
+  drv_nvm_param_ptr()->param.Timbre = TIMBRE_BOOT_SLOT;
   Accomp_ApplyDefaultIChord();
   app_tm1629_reset_key_state();
   s_pwr_rails_cut = 0u;
diff --git a/driver/drv_nvm.c b/driver/drv_nvm.c
index 6d9226e..793ce3d 100644
--- a/driver/drv_nvm.c
+++ b/driver/drv_nvm.c
@@ -200,7 +200,7 @@ void drv_nvm_load_default_calibration_static_value(NvmParam_Type * pData,  uint8
   if(reset_open_status)
   {
     pData->param.BPM = 100;
-    pData->param.Timbre = 0;
+    pData->param.Timbre = TIMBRE_BOOT_SLOT;
     pData->param.BandVol = 7;
     pData->param.StringVol = 7;
     pData->param.MIcVol = 7;
@@ -216,6 +216,8 @@ void drv_nvm_load_default_calibration_static_value(NvmParam_Type * pData,  uint8
     pData->param.UsbMode     = NVM_USB_MIDI;
   }
   mGuiData[GUI_SPEED].Current           		= pData->param.BPM;
+  /* 弦音色不跨开关机记忆，冷启动也用 Bank1 的 25 号 */
+  pData->param.Timbre = TIMBRE_BOOT_SLOT;
   mGuiData[GUI_TIMBRE_SELECT].Current   		= pData->param.Timbre;
   mGuiData[GUI_TRANSPOSE].Current       		= pData->param.Transpose;
   faders[0].val 								= pData->param.BandVol;
@@ -233,9 +235,6 @@ void drv_nvm_load_default_calibration_static_value(NvmParam_Type * pData,  uint8
     pData->param.Language = NVM_LANG_CN;
   if (pData->param.UsbMode > 1)
     pData->param.UsbMode = NVM_USB_MIDI;
-  /* 节奏类型、弦音色不跨开关机记忆，冷启动也回到第一项 */
-  pData->param.Timbre = 0;
-  pData->param.Param1 = 0;
   mGuiData_SystemSETTING[GUI_USB_MODE].Current = pData->param.UsbMode;
   /* 开机/出厂：同步自动关机运行时秒表（手册 15/30/45/60/不自动） */
   AutoCloseFlag = true;
diff --git a/midi/midi_tables.h b/midi/midi_tables.h
index 05189b5..591d437 100644
--- a/midi/midi_tables.h
+++ b/midi/midi_tables.h
@@ -49,6 +49,8 @@ extern const STRING_MIDI OrganMIDI_7[];
 extern const STRING_MIDI *Chord_Midi_Table[7];
 extern const STRING_MIDI *OrganChord_Midi_Table[7];
 extern const uint8_t Timbre_index[5];
+/* 开机不记忆：Bank1 Program 25（钢弦）= Timbre_index[1] */
+#define TIMBRE_BOOT_SLOT  1u
 
 /* 当前使用的 MIDI 音符 */
 extern STRING_MIDI USE_MIDI;
diff --git a/tools/gen_sysset_font.py b/tools/gen_sysset_font.py
index 66e57ce..0336648 100644
--- a/tools/gen_sysset_font.py
+++ b/tools/gen_sysset_font.py
@@ -194,7 +194,7 @@ def main():
         raise SystemExit(
             "USB row overflow: label ends %d, left arrow at %d" % (label_end, tril_x)
         )
-    ver_w = text_w("0.2.41", glyphs)
+    ver_w = text_w("0.2.42", glyphs)
     gh = glyphs["0"][0].size[1]
     pill_h = gh + 8
     pill_w = ver_w + 18
@@ -377,7 +377,7 @@ def preview(pics, glyphs, back, back_xy, chev, chev_xy, tri_l, tl, tri_r, tr,
         paste(canvas, tri_l, tl[0], row_y + (tl[1] - (CARD_Y0 + CARD_PITCH)))
         paste(canvas, tri_r, tr[0], row_y + (tr[1] - (CARD_Y0 + CARD_PITCH)))
     fill_round(canvas, CARD_X + pill_dx, CARD_Y0 + pill_dy, pill_w, pill_h, 6, (0, 8, 19))
-    ver = "0.2.41"
+    ver = "0.2.42"
     tw = text_w(ver, glyphs)
     gh = glyphs["0"][0].size[1]
     draw_text(canvas, CARD_X + pill_dx + (pill_w - tw) // 2,
diff --git a/tools/publish_k1_release.py b/tools/publish_k1_release.py
index ff60943..16937e8 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 = "0.2.41"
+FW_VER = "0.2.42"
 UI0902_RES_BASE = 0x00100000
 BOOT_FLASH_ADDR = 0x08000000
 APP_FLASH_ADDR = 0x08008000