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About tunin
Jn MIDI, individual Ports are tuned by sending RPN #1 (Master Fine Tuning] to the appropriate MID! channel,
In MIDI, on entice device is tuned by either sending RPN #1 to oll MIDI chonnels being used, or by sending a System
Exclusive MASTER TUNE {address 40 00 00H).
RPH #1 allows tuning to be specified in steps of approximately 0.012 cents {to be precise, 100/B192 cent}, ond
Systam Exclusive MASTER TUNE allows tuning ia steps of 0.1 cant, One cent is 1/100th of o semitone,
Tha values of RPN #1 {Master Fine Tuning} and System Exclusive MASTER TUNE ore added together to determine the
actual pitch sounded by each Part,
Frequently used tuning values are given in the following table for your reference, Values are in hexadecimal (deci-
mal in parentheses).
+
| HratAd
|
cent
|
RPN #1
i
Sys. 400000
|
ra
44501
+19.561
4C 43 +1603}
06 04 OC 04 (+196)!
44401
415.71
4403 (+1283
00 04 09 OD (+157)!
« 44301
+TN76L
47 44 (+ 964)
00 04 07 06 (+118)!
t
|
|
|
44201
+7851
45.03 (+ 643}
00-04 04 OF {+ 79)!
i
4aol
+3931
42 42 (+ 322}
00.04 02 07 {+ 39}!
{
440.01
ol
40.004 0 I
00.040000( 0} 1
|
339.01
"3.941
30 3D {- 323}!
00.03. 0D 69 {- 39}!
|
338.0!
7894
SATAL 646}
06 03.08 01 {-79)1
<Exomple>
Set the tuning of MID! channel 3 1a Ad = 442,0Hz
Send RPN#? to MIDI channel 2. From the above table, the value is 45 03H
82
6400
MIDI ch.3, lower byte of RPN parameter number
DOH
{82}
6501
(MID! ch.3} upper byte of RPN parometer number
01H
(B2}
06 45
(MIDI ch.3) upper byte of value
ASH
{82}
2603
{MIDI ch.3} lower byte of volue
03H
(82)
64 7F
(MIDI ch.3) lower byte of RPH parameter number
TRH
{B2)
65 7F
(HID! ch.3) upper byte of RPN parameter number
TRH
The Scale Tune Feature (address : 40 1x 40)
* Equal Temperament
« Just Temperament (Keytone C)
* Arabian Scale
By altering the setting for Scele Tune, you con obtain a variety of ather tunings suited for ethnic music, Fer exomple,
the settings introduced helow will set the uni to use the Arabian Secle,
Exomple Setttings
Note name — Equot
Just Temperament
Arabian Scale
[Kaytone 0}
Tempecoment
C
0
Q
5
G#
0
4
+45
DB
0
a4
2
oF
6
+16
12
e
0
4
a
F
a
2
8
fe
q
10
+43
6
i]
+2
4
G#
o
+4
+47
A
a
16
a
Ae
8
+4
ait)
8
a
AQ
Ag
31
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