LucyTuning - table of YAM values for Yamaha DX7 MkII, DX7S, TX802, and SY55.

LucyTuning Tables for DX7 Mk II, The YAMS.

This table is for LucyTuning the Yamaha DX7 MkII & SY series in YAMS.
If A1 is 3754 on equal temperament C1 equal temperament = {3754 - [900 x (1024/1200)]} = 2986.
All codes should be (2998 - 2986) = 12 pitch units flatter if C equal temperament is used as the reference pitch.
N.B. Any note is sharpened or flattened by the addition or subtraction of 68.451 cents i.e. 68.451 x (1024/1200) = 58 pitch units.
There are 1024 pitch units (called YAMS) in one octave which equals 1200 cents.
Therefore one cent is the equivalent of 1024/1200 pitch units, and each YAM = 1200/1024 = 1.171875 cents
This keyboard has five octaves from C to C. It may be tuned from C-2 to G8.
Using A as the reference point and setting all black keys as the appropriate sharp or flat the settings should be as follows:
(Based upon A3=440 Hertz coded 5802)

Octave -2 -1 0 1 2 3 4 5 6 7 8

Gb 461 1485 2509 3533 4557 5581 6605 7629 8653 9677 10701
F## 473 1497 2521 3545 4569 5593 6617 7641 8665 9689 10713
E4# 485 1507 2533 3557 4581 5605 6629 7653 8677 9701 10725
Abbb 507 1531 2555 3579 4603 5627 6651 7675 8699 9723 10747

G 519 1543 2567 3591 4615 5639 6663 7687 8711 9735 10759
F### 531 1555 2579 3603 4627 5651 6675 7699 8723 9747 10771
Abb 565 1589 2613 3637 4661 5685 6709 7733 8757 9781

G# 577 1601 2625 3649 4673 5697 6721 7745 8769 9793
F4# 590 1614 2638 3662 4686 5710 6734 7758 8782 9806
B4b 611 1635 2659 3683 4707 5731 6755 7779 8803 9827

Ab 624 1648 2672 3696 4720 5744 6768 7792 8816 9840
G## 636 1660 2684 3708 4732 5756 6780 7804 8828 9852
Bbbb 670 1694 2718 3742 4766 5790 6814 7838 8862 9886

A 682 1706 2730 3754 4778 5802 6826 7850 8874 9898
G### 694 1718 2742 3766 4790 5814 6838 7862 8886 9910
C4b 716 1740 2764 3788 4812 5836 6860 7884 8908 9932
Bbb 728 1752 2776 3800 4824 5848 6872 7896 8920 9944

A# 740 1764 2788 3812 4836 5860 6884 7908 8932 9956
G4# 753 1777 2801 3825 4849 5873 6897 7921 8945 9969
Cbbb 774 1752 2822 3846 4870 5894 6918 7942 8966 9990

Bb 787 1811 2835 3859 4883 5907 6931 7955 8979 10003
A## 799 1823 2871 3871 4895 5919 6943 7967 8991 10015
Cbb 820 1844 2868 3892 4916 5940 6964 7988 9012 10036

B 845 1869 2893 3917 4941 5965 6989 8013 9037 10061
A### 857 1881 2905 3929 4953 5977 7001 8025 9049 10073
D4b 879 1903 2927 3951 4975 5999 7023 8047 9071 10095

Cb 891 1915 2939 3963 4987 6011 7035 8059 9083 10107
B# 903 1927 2951 3975 4999 6023 7047 8071 9095 10119
A4# 916 1940 2964 3988 5012 6036 7060 8084 9108 10132
Dbbb 937 1961 2985 4009 5033 6057 7081 8105 9129 10153

C 950 950 1974 2998 4022 5046 6070 7094 8118 9142 10166
B## 962 962 1986 3010 4034 5058 6082 7106 8130 9154 10178
Dbb 996 996 2020 3044 4068 5092 6116 7140 8164 9188 10212

C# 1008 1008 2032 3056 4080 5104 6128 7152 8176 9200 10224
B###1020 1020 2044 3068 4092 5116 6140 7164 8188 9212 10236
E4b 18 1042 2066 3090 4114 5138 6162 7186 8210 9234 10258

Db    30 1054 2078 3102 4126 5150 6174 7198 8222 9246 10270
C##   42 1066 2090 3114 4138 5162 6186 7210 8234 9258 10282
B4#   55 1079 2103 3127 4151 5175 6199 7223 8247 9271 10295
Ebbb 76 1100 2124 3148 4172 5196 6220 7244 8268 9292 10316

D 89 1113 2137 3161 4185 5209 6233 7257 8281 9305 10329
C### 107 1131 2155 3173 4197 5221 6245 7269 8293 9317 10341
F4b 122 1146 2170 3194 4218 5242 6266 7290 8314 9338 10362
Ebb 135 1159 2183 3207 4231 5255 6279 7303 8327 9351 10375

D# 147 1171 2195 3219 4243 5267 6291 7315 8339 9363 10387
C4# 159 1183 2207 3231 4255 5279 6303 7327 8351 9375 10399
Fbbb 181 1205 2229 3253 4277 5301 6325 7349 8473 9397 10421

Eb 193 1217 2241 3265 4289 5313 6337 7361 8385 9409 10433
D## 205 1229 2253 3277 4301 5325 6349 7373 8456 9421 10445
Fbb 239 1263 2287 3311 4335 5359 6383 7407 8431 9455 10479

E 251 1275 2299 3323 4347 5371 6395 7419 8443 9467 10491
D### 264 1288 2312 3336 4360 5384 6408 7432 8456 9480 10504
G4b 285 1309 2333 3357 4381 5405 6429 7453 8477 9501 10525

Fb 298 1322 2346 3370 4394 5418 6442 7466 8490 9514 10538

E# 310 1334 2358 3382 4406 5430 6454 7478 8502 9526 10550
D4# 322 1346 2370 3394 4418 5442 6466 7490 8514 9538 10562
Gbbb 344 1368 2392 3416 4440 5464 6488 7512 8536 9560 10584

F 356 1380 2404 3428 4452 5476 6500 7524 8548 9572 10596
E## 368 1392 2416 3440 4464 5488 6512 7536 8560 9584 10608
Gbb 402 1426 2450 3474 4498 5522 6546 7570 8594 9618 10642

F# 414 1482 2462 3486 4510 5534 6558 7582 8606 9630 10654
E### 427 1451 2475 3499 4523 5547 6571 7595 8619 9643 10667
A4b 448 1472 2496 3520 4544 5568 6592 7616 8640 9664 10688

G 519 1543 2567 3591 4615 5639 6663 7687 8711 9735 10759
F### 531 1555 2579 3603 4627 5651 6675 7699 8723 9747 10771
Abb 565 1589 2613 3637 4661 5685 6709 7733 8757 9781

G# 577 1601 2625 3649 4673 5697 6721 7745 8769 9793
F4# 590 1614 2638 3662 4686 5710 6734 7758 8782 9806
B4b 611 1635 2659 3683 4707 5731 6755 7779 8803 9827

Ab 624 1648 2672 3696 4720 5744 6768 7792 8816 9840
G## 636 1660 2684 3708 4732 5756 6780 7804 8828 9852
Bbbb 670 1694 2718 3742 4766 5790 6814 7838 8862 9886

A# 740 1764 2788 3812 4836 5860 6884 7908 8932 9956
G4# 753 1777 2801 3825 4849 5873 6897 7921 8945 9969
Cbbb 774 1752 2822 3846 4870 5894 6918 7942 8966 9990

Bb 787 1811 2835 3859 4883 5907 6931 7955 8979 10003
A## 799 1823 2847 3871 4895 5919 6943 7967 8991 10015
Cbb 820 1844 2868 3892 4916 5940 6964 7988 9012 10036

B 845 1869 2893 3917 4941 5965 6989 8013 9037 10061
A### 857 1881 2905 3929 4953 5977 7001 8025 9049 10073
D4b 879 1903 2927 3951 4975 5999 7023 8047 9071 10095

EMail to Charles Lucy from here. (lucy@harmonics.com)
For pitchbend and Midi Tuning Dump specs.
Assignment of notes to keyboard for tuning tables.

LucyTuning homepage