Part VIII
MIDI Implementation Notation27 Value Notation
27.1Hexadecimal Notation
MIDI implementation sometimes requires that data be expressed in hexadecimal format. Hexadecimal values are indicated by the letter “H” after the value. The hexadecimal equivalents of decimal values 10 through 15 are expressed as the letters A through F. The table below shows the hexadecimal equivalents for decimal values 0 through 127, which are often used in MIDI messages.
Decimal | Hexadecimal | Decimal | Hexadecimal | Decimal | Hexadecimal | Decimal | Hexadecimal |
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0 | 00H | 32 | 20H | 64 | 40H | 96 | 60H |
1 | 01H | 33 | 21H | 65 | 41H | 97 | 61H |
2 | 02H | 34 | 22H | 66 | 42H | 98 | 62H |
3 | 03H | 35 | 23H | 67 | 43H | 99 | 63H |
4 | 04H | 36 | 24H | 68 | 44H | 100 | 64H |
5 | 05H | 37 | 25H | 69 | 45H | 101 | 65H |
6 | 06H | 38 | 26H | 70 | 46H | 102 | 66H |
7 | 07H | 39 | 27H | 71 | 47H | 103 | 67H |
8 | 08H | 40 | 28H | 72 | 48H | 104 | 68H |
9 | 09H | 41 | 29H | 73 | 49H | 105 | 69H |
10 | 0AH | 42 | 2AH | 74 | 4AH | 106 | 6AH |
11 | 0BH | 43 | 2BH | 75 | 4BH | 107 | 6BH |
12 | 0CH | 44 | 2CH | 76 | 4CH | 108 | 6CH |
13 | 0DH | 45 | 2DH | 77 | 4DH | 109 | 6DH |
14 | 0EH | 46 | 2EH | 78 | 4EH | 110 | 6EH |
15 | 0FH | 47 | 2FH | 79 | 4FH | 111 | 6FH |
16 | 10H | 48 | 30H | 80 | 50H | 112 | 70H |
17 | 11H | 49 | 31H | 81 | 51H | 113 | 71H |
18 | 12H | 50 | 32H | 82 | 52H | 114 | 72H |
19 | 13H | 51 | 33H | 83 | 53H | 115 | 73H |
20 | 14H | 52 | 34H | 84 | 54H | 116 | 74H |
21 | 15H | 53 | 35H | 85 | 55H | 117 | 75H |
22 | 16H | 54 | 36H | 86 | 56H | 118 | 76H |
23 | 17H | 55 | 37H | 87 | 57H | 119 | 77H |
24 | 18H | 56 | 38H | 88 | 58H | 120 | 78H |
25 | 19H | 57 | 39H | 89 | 59H | 121 | 79H |
26 | 1AH | 58 | 3AH | 90 | 5AH | 122 | 7AH |
27 | 1BH | 59 | 3BH | 91 | 5BH | 123 | 7BH |
28 | 1CH | 60 | 3CH | 92 | 5CH | 124 | 7CH |
29 | 1DH | 61 | 3DH | 93 | 5DH | 125 | 7DH |
30 | 1EH | 62 | 3EH | 94 | 5EH | 126 | 7EH |
31 | 1FH | 63 | 3FH | 95 | 5FH | 127 | 7FH |
27.2Binary Notation
When a MIDI implementation data value is expressed in binary, the letter “B” (for “binary”) is affixed at the end of the value. The table below shows the binary equivalents for the decimal values 0 through 127, which are often used for settings.
Decimal | Hexadecimal | Binary |
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0 | 00H | 00000000B |
1 | 01H | 00000001B |
2 | 02H | 00000010B |
3 | 03H | 00000011B |
4 | 04H | 00000100B |
5 | 05H | 00000101B |
6 | 06H | 00000110B |
7 | 07H | 00000111B |
8 | 08H | 00001000B |
9 | 09H | 00001001B |
10 | 0AH | 00001010B |
11 | 0BH | 00001011B |
12 | 0CH | 00001100B |
13 | 0DH | 00001101B |
14 | 0EH | 00001110B |
15 | 0FH | 00001111B |
16 | 10H | 00010000B |
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125 | 7DH | 01111101B |
126 | 7EH | 01111110B |
127 | 7FH | 01111111B |
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