diff --git a/README.md b/README.md
index d3bb567..bfdf6ca 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Digital Synth VRA8-U v2.2.0
+# Digital Synth VRA8-U v2.2.1
 
 - 2023-05-04 ISGK Instruments
 - <https://github.com/risgk/digital-synth-vra8-u>
@@ -19,9 +19,9 @@
 
 ## Change History
 
-- v2.2.0:
+- v2.2.1:
     - Separate Voice Mode Lgt (Legato) into Lgt (Legato) and LP (Legato Portamento)
-    - Fix Voice Mode value 32 to be Monophonic mode
+    - Fix Voice Mode value 32 to be Mon (Monophonic) mode
 - v2.1.0:
     - Make the VRA8-U main unit recognize Program Change #8-15 (It is valid when VRA8-U CTRL is not used)
     - Improve stability
@@ -156,11 +156,11 @@ This image was created with Fritzing.
 
 ![CC0](http://i.creativecommons.org/p/zero/1.0/88x31.png)
 
-Digital Synth VRA8-U v2.2.0 by ISGK Instruments (Ryo Ishigaki)
+Digital Synth VRA8-U v2.2.1 by ISGK Instruments (Ryo Ishigaki)
 
 To the extent possible under law, ISGK Instruments (Ryo Ishigaki)
 has waived all copyright and related or neighboring rights
-to Digital Synth VRA8-U v2.2.0.
+to Digital Synth VRA8-U v2.2.1.
 
 You should have received a copy of the CC0 legalcode along with this
 work.  If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
diff --git a/VRA8-U-MIDI-Implementation-Chart.md b/VRA8-U-MIDI-Implementation-Chart.md
index c58c5f9..2e128b7 100644
--- a/VRA8-U-MIDI-Implementation-Chart.md
+++ b/VRA8-U-MIDI-Implementation-Chart.md
@@ -1,6 +1,6 @@
 ```
   [United Synthesizer]                                            Date: 2023-05-04                  
-  Model: Digital Synth VRA8-U     MIDI Implementation Chart       Version: 2.2.0                    
+  Model: Digital Synth VRA8-U     MIDI Implementation Chart       Version: 2.2.1                    
 +-------------------------------+---------------+---------------+----------------------------------+
 | Function...                   | Transmitted   | Recognized    | Remarks                          |
 +-------------------------------+---------------+---------------+----------------------------------+
diff --git a/VRA8-U-Parameter-Guide.md b/VRA8-U-Parameter-Guide.md
index 4a6949d..2a05451 100644
--- a/VRA8-U-Parameter-Guide.md
+++ b/VRA8-U-Parameter-Guide.md
@@ -1,4 +1,4 @@
-# Digital Synth VRA8-U Parameter Guide v2.2.0
+# Digital Synth VRA8-U Parameter Guide v2.2.1
 
 - 2023-05-04 ISGK Instruments
 - <https://github.com/risgk/digital-synth-vra8-u>
diff --git a/VRA8-U-type-16-Operation-Guide.md b/VRA8-U-type-16-Operation-Guide.md
index 82507b7..481ee75 100644
--- a/VRA8-U-type-16-Operation-Guide.md
+++ b/VRA8-U-type-16-Operation-Guide.md
@@ -1,4 +1,4 @@
-# Digital Synth VRA8-U type-16 Operation Guide v2.2.0
+# Digital Synth VRA8-U type-16 Operation Guide v2.2.1
 
 - 2023-05-04 ISGK Instruments
 - <https://github.com/risgk/digital-synth-vra8-u>
diff --git a/vra8-u-ctrl.html b/vra8-u-ctrl.html
index a2cba34..6bbf6a2 100644
--- a/vra8-u-ctrl.html
+++ b/vra8-u-ctrl.html
@@ -41,7 +41,7 @@
 }
 </style>
 <script>
-const APP_NAME_VERSION = "VRA8-U CTRL v2.2.0";
+const APP_NAME_VERSION = "VRA8-U CTRL v2.2.1";
 
 const MIDI_CH        = 0;       // Basic Channel 1
 const NOTE_OFF       = 0x80;
@@ -1120,7 +1120,7 @@
 <tr>
 <td colspan="2"><b>EG</b> Osc Amt [-|+]                  </td>
 <td colspan="2"><b>EG</b> Osc Dst [P|2P|1S]              </td>
-<td colspan="2">Voice Mode [Par|Mon|Lgt]          </td>
+<td colspan="2">Voice Mode [Par|-|Mon|Lgt|LP]     </td>
 <td colspan="2">Portamento                        </td>
 </tr>
 <tr>
diff --git a/vra8-u-prog-preset.json b/vra8-u-prog-preset.json
index 066e83f..7f2018d 100644
--- a/vra8-u-prog-preset.json
+++ b/vra8-u-prog-preset.json
@@ -1,5 +1,5 @@
 {
-  "_version     " : "VRA8-U CTRL v2.2.0",
+  "_version     " : "VRA8-U CTRL v2.2.1",
   "_comment     " : "  CURRENT  #8   #9   #10  #11  #12  #13  #14  #15  ",
   "OSC_1_WAVE     " : [ [0  ], [0  , 0  , 0  , 0  , 0  , 96 , 0  , 0  ] ],
   "OSC_1_SHAPE    " : [ [0  ], [0  , 0  , 0  , 0  , 0  , 0  , 0  , 0  ] ],
diff --git a/vra8-u-type-16-ctrl.html b/vra8-u-type-16-ctrl.html
index 13676d4..2e11064 100644
--- a/vra8-u-type-16-ctrl.html
+++ b/vra8-u-type-16-ctrl.html
@@ -41,7 +41,7 @@
 }
 </style>
 <script>
-const APP_NAME_VERSION = "VRA8-U type-16 CTRL v2.2.0";
+const APP_NAME_VERSION = "VRA8-U type-16 CTRL v2.2.1";
 
 const MIDI_CH        = 0;       // Basic Channel 1
 const NOTE_OFF       = 0x80;
diff --git a/vra8-u-type-16-prog-preset.json b/vra8-u-type-16-prog-preset.json
index b1e21fd..d456c91 100644
--- a/vra8-u-type-16-prog-preset.json
+++ b/vra8-u-type-16-prog-preset.json
@@ -1,5 +1,5 @@
 {
-  "_version     " : "VRA8-U type-16 CTRL v2.2.0",
+  "_version     " : "VRA8-U type-16 CTRL v2.2.1",
   "_comment     " : "  CURRENT  #8   #9   #10  #11  #12  #13  #14  #15  ",
   "OSC_1_WAVE     " : [ [0  ], [0  , 0  , 0  , 0  , 0  , 96 , 0  , 0  ] ],
   "OSC_1_SHAPE    " : [ [0  ], [0  , 0  , 0  , 0  , 0  , 0  , 0  , 0  ] ],