Part V
MIDI Implementation Notation
16
Value Notation
16.1
Hexadecimal 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
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
16.2
Binary 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.
19
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