MIDI Note Numbers
International Organization Standardization system of MIDI note numbers. Middle C is
MIDI note number 60 (C4).
Octave
C
-1
0
0
12
1
24
2
36
3
48
4
60
5
72
6
84
7
96
8
108
9
120
20
C#
D
D#
1
2
3
13
14
15
25
26
27
37
38
39
49
50
51
61
62
63
73
74
75
85
86
87
97
98
99
109
110
111
121
122
123
Note Numbers
E
F
F#
4
5
6
16
17
18
28
29
30
40
41
42
52
53
54
64
65
66
76
77
78
88
89
90
100
101
102
112
113
114
124
125
126
G
G#
A
7
8
9
19
20
21
31
32
33
43
44
45
55
56
57
67
68
69
79
80
81
91
92
93
103
104
105
115
116
117
127
A#
B
10
11
22
23
34
35
46
47
58
59
70
71
82
83
94
95
106
107
118
119