Roland M-GS64

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)
The
scale
Tune
feature
allows
you
to
finely
adjust
the
individual
pitch
of
the
notes
from
C
through
8.
Though
the
set-
tings
are
made
while
working
with
one
actave,
the
fing
adjustments
will
offect
all
octaves,
By
making
the
appropri-
ate
Scale
Tune
settings,
you
con
obtain
o
complete
variety
of
tuning
methods
other
than
equal
temperament,
As
examples,
three
possible
types
af
scale
setting
ore
explained
below.
* Equal Temperament
This
method
of
tuning
divides
the
octave
into
12
equal
pars.
It
és
currently
the
most
widely
used
form
of
tuning,
especially
in
occidental
music.
On
the
M-G564,
the
default
setings
for
the
Scale
Tune
feature
produce
equal
tempera-
ment.
« Just Temperament (Keytone C)
The
three
main
chords
resound
much
more
beautifully
than
with
equal
temperament,
but
this
benefit
con
only
be
obtoined
in
one
key.
f
transposed,
the
chords
tend
to
become
ambiguous.
The
example
given
involves
settings
for
a
key
in
which
Cis
the
keynote,
* 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
The
values
in
tha
table
are
givan
in
cents.
Refer
to
the explanation
of
Scale
Tuning
on
poge
45
to
convert
these
val-
vas
te
hexadecimal,
and
transmit
them
os
sxclusive
date
to
the
M-GSE4.
For
exemple,
to
set
the
tune
{((-B)
of
the
Part}
Arabian
Stole,
send
the
data
as
follows:
FO
41
10421240
11
40
3A
6D
3E
34
0D
38
6B
3C
OF
40
36
OF
75
FF
31