SQ-1 MIDI Implementation                   Revision 1.00 (2015.02.27)

1. Transmitted Data ------------------------------------------------------------

1-1 Channel Messages            [H]:Hex,  [D]:Decimal
+---------+---------+----------+-------------------------------------+
| Status  | Second  |  Third   |    Description  (Transmitted by )   |
|  [Hex]  | [H] [D] | [H] [D]  |                                     |
+---------+---------+----------+-------------------------------------+
|   9n    | kk (kk) | 00  (00) | Note Off                         *1 |
|   9n    | kk (kk) | 40  (64) | Note On                          *1 |
+---------+---------+----------+-------------------------------------+
 n  : MIDI Channel = 0~15
 kk : 48 ~ 108
 *1 :This message is transmitted when the SQ-1 works as a clock master.


1-2 SYSTEM REALTIME MESSAGES
+---------+------------------------------------------------+
|Status[H]|                Description                     |
+---------+------------------------------------------------+
|   F8    | Timing Clock                                *2 |
|   FA    | Start                                       *2 |
|   FC    | Stop                                        *2 |
|   FE    | Active Sensing                                 |
+---------+------------------------------------------------+
 *2 :This message is transmitted when the SQ-1 works as a clock master.


1-3 Universal System Exclusive Message ( Non Realtime )

 Device Inquiry Reply
+---------+------------------------------------------------+
| Byte[H] |                Description                     |
+---------+------------------------------------------------+
|   F0    | Exclusive Status                               |
|   7E    | Non Realtime Message                           |
|   0g    | Global MIDI Channel  ( Device ID )             |
|   06    | General Information                            |
|   02    | Identity Reply                                 |
|   42    | KORG ID              ( Manufacturers ID )      |
|   31    | Software Project     ( Family ID   (LSB))      |
|   01    |                      ( Family ID   (MSB))      |
|   00    |                      ( Member ID   (LSB))      |
|   00    |                      ( Member ID   (MSB))      |
|   xx    |                      ( Minor Ver.  (LSB))      |
|   xx    |                      ( Minor Ver.  (MSB))      |
|   xx    |                      ( Major Ver.  (LSB))      |
|   xx    |                      ( Major Ver.  (MSB))      |
|   F7    | End Of Exclusive                               |
+---------+------------------------------------------------+
  This message is transmitted whenever an Inquiry Message Request is received.


1-4 Search Device Message

 Search Device Reply
+---------+------------------------------------------------+
| Byte[H] |                Description                     |
+---------+------------------------------------------------+
|   F0    | Exclusive Status                               |
|   42    | KORG ID              ( Manufacturers ID )      |
|   50    | Search Device                                  |
|   01    | Reply                                          |
|   0g    | gggg: MIDI Global Channel  ( Device ID )       |
|   dd    | Echo Back ID                                   |
|   31    | SQ-1 ID              ( Family ID   (LSB))      |
|   01    | SQ-1 ID              ( Family ID   (MSB))      |
|   00    | SQ-1 Member ID       ( Member ID   (LSB))      |
|   00    | SQ-1 Member ID       ( Member ID   (MSB))      |
|   xx    |                      ( Minor Ver.  (LSB))      |
|   xx    |                      ( Minor Ver.  (MSB))      |
|   xx    |                      ( Major Ver.  (LSB))      |
|   xx    |                      ( Major Ver.  (MSB))      |
|   F7    | End Of Exclusive                               |
+---------+------------------------------------------------+
  g  : MIDI Global Channel = 0 ~ F
  dd : Echo Back ID = copy from SEARCH DEVICE REQUEST message.

  This message is transmitted whenever a SEARCH DEVICE REQUEST is received.



2. Recognized Receive Data -----------------------------------------------------

2-1 Channel Messages            [H]:Hex,  [D]:Decimal
+---------+---------+----------+-------------------------------------+
| Status  | Second  |  Third   |           Description               |
| [Hex]   | [H] [D] | [H] [D]  |                                     |
+---------+---------+----------+-------------------------------------+
|   8n    | kk (kk) | vv  (vv) | Note Off    vv=0~127                |
|   9n    | kk (kk) | 00  (00) | Note Off                            |
|   9n    | kk (kk) | vv  (vv) | Note On     vv=1~127                |
|   Bn    | 78(120) | 00  (00) | All Sound Off                       |
|   Bn    | 7B(123) | 00  (00) | All Note Off                        |
+---------+---------+----------+-------------------------------------+
 n  : MIDI Channel = 0~15


2-2 SYSTEM REALTIME MESSAGES
+---------+------------------------------------------------+
|Status[H]|                Description                     |
+---------+------------------------------------------------+
|   F8    | Timing Clock                                *3 |
|   FA    | Start                                       *3 |
|   FC    | Stop                                        *3 |
|   FE    | Active Sensing                                 |
+---------+------------------------------------------------+
 *3 :This message is recognized when the "SYNC IN" is not connected.


2-3 Universal System Exclusive Message (Non Realtime)

 Inquiry Message Request
+---------+------------------------------------------------+
| Byte[H] |                Description                     |
+---------+------------------------------------------------+
|   F0    | Exclusive Status                               |
|   7E    | Non Realtime Message                           |
|   gg    | Global MIDI Channel                            |
|   06    | General Information                            |
|   01    | Identity Request                               |
|   F7    | End Of Exclusive                               |
+---------+------------------------------------------------+
 gg = 00~0F :Received if Global Channel
      7F    :Received on any Channel


2-4 Search Device Message

 Search Device Request
+---------+------------------------------------------------+
| Byte[H] |                Description                     |
+---------+------------------------------------------------+
|   F0    | Exclusive Status                               |
|   42    | KORG ID              ( Manufacturers ID )      |
|   50    | Search Device                                  |
|   00    | Request                                        |
|   dd    | Echo Back ID                                   |
|   F7    | END OF EXCLUSIVE                               |
+---------+------------------------------------------------+
 Receive this message, and transmits SEARCH DEVICE REPLY message
 including copied Echo Back ID.