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Part V
MIDI Implementation Notation
20
Value Notation
20.1
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
0
00H
1
01H
2
02H
3
03H
4
04H
5
05H
6
06H
7
07H
8
08H
9
09H
10
0AH
11
0BH
12
0CH
13
0DH
14
0EH
15
0FH
16
10H
17
11H
18
12H
19
13H
20
14H
21
15H
22
16H
23
17H
24
18H
25
19H
26
1AH
27
1BH
28
1CH
29
1DH
30
1EH
31
1FH
20.2
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.
Decimal
Hexadecimal
Decimal
32
20H
33
21H
34
22H
35
23H
36
24H
37
25H
38
26H
39
27H
40
28H
41
29H
42
2AH
43
2BH
44
2CH
45
2DH
46
2EH
47
2FH
48
30H
49
31H
50
32H
51
33H
52
34H
53
35H
54
36H
55
37H
56
38H
57
39H
58
3AH
59
3BH
60
3CH
61
3DH
62
3EH
63
3FH
Hexadecimal
Decimal
64
40H
96
65
41H
97
66
42H
98
67
43H
99
68
44H
100
69
45H
101
70
46H
102
71
47H
103
72
48H
104
73
49H
105
74
4AH
106
75
4BH
107
76
4CH
108
77
4DH
109
78
4EH
110
79
4FH
111
80
50H
112
81
51H
113
82
52H
114
83
53H
115
84
54H
116
85
55H
117
86
56H
118
87
57H
119
88
58H
120
89
59H
121
90
5AH
122
91
5BH
123
92
5CH
124
93
5DH
125
94
5EH
126
95
5FH
127
20
Hexadecimal
60H
61H
62H
63H
64H
65H
66H
67H
68H
69H
6AH
6BH
6CH
6DH
6EH
6FH
70H
71H
72H
73H
74H
75H
76H
77H
78H
79H
7AH
7BH
7CH
7DH
7EH
7FH
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