ABCDEFGHIJKLMNOPQRSTUVWXYZAAAB
1
OPL3 Tuning to 440HzSource:
http://nerdlypleasures.blogspot.com/2018/01/opl23-frequency-1hz-ish-difference.html
2
Concert tuning (A4 = 440Hz).

Source: https://www.inspiredacoustics.com/en/MIDI_note_numbers_and_center_frequencies
Newer Chips
YMF278 (OPL4)
YMF289 (OPL3-L)
YMF7xx
Older Chips (OPL2, OPL3)
YMF262
Original Linux values from opl3_midi.c
3
4
5
6
7
8
OPL-"Block"
MIDI Note number
f
F-Num at 49516Hz
rounded
F-Num at 49716Hz
roundedLinux 5.6.4
9
464e4329,63436,2757832436434,5207112435
10
465f4349,23462,2170062462460,3575766460
11
466f#4369,99489,6935261490487,7235626488
12
467g4392518,8244608519516,7373079517
13
468g#4415,3549,6627514550547,4515408547
14
469a4440582,3539866582580,011264580
15
470a#4466,16616,9775782617614,49557614
16
471b493,88653,6658793654651,0362797651
17
572c5523,25346,269004346344,8760158345343
18
573c#5554,37366,8631586367365,3873232365363
19
574d5587,33388,6749624389387,1113814387385
20
575d#5622,25411,7838274412410,127283410408
21
576e5659,26436,2757832436434,5207112435432
22
577f5698,46462,2170062462460,3575766460458
23
578f#5739,99489,7001438490487,7301537488485
24
579g5784518,8244608519516,7373079517514
25
580g#5830,6549,6627514550547,4515408547544
26
581a5880582,3539866582580,011264580577
27
582a#5932,32616,9775782617614,49557614611
28
583b987,76653,6658793654651,0362797651647
29
6841046,5346,269004346344,8760158345
30
6851108,74366,8631586367365,3873232365
31
6861174,66388,6749624389387,1113814387
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100