Roland groovebox MC-307 Manual De Referencia página 189

-) 01 00 00 00H
00 00 19 1AH
F0 41 10 00 0B 11 01 00 00 00
(1) (2) (3) (4) (5) (6) address
(1) Exclusive status (2) ID number (Roland)(3) Device ID (17)
(4), (5) Model ID (MC-307)(6) Command ID (RQ1)(7) EOX
When the checksum is calculated in the same way as in <Example 2>, we have the following
message to be transmitted: F0 41 10 00 0B 11 01 00 00 00 00 00 19 1A 4C F7.
Scale Tune function (Model ID : 42H (GS), address: 40
1x 40H)
Scale Tune is a function that makes fine adjustments to the pitch of each note C-B. Settings
are made for one octave, and applied to the notes of all octaves. By making Scale Tune
settings you can use tunings and temperaments other than the standard Equal
Temperament. Here we give three types of settings as examples.
Equal temperament
This temperament divides the octave into 12 equal steps, and is the temperament most
frequently used today, especially in western music. Initially, the Scale Tune function of this
instrument is set to Equal Temperament.
Just intonation (tonic of C)
The primary triads sound more beautiful in just intonation than in equal temperament.
However, this applies only in one key, and chords will be discordant if you play in a
different key. The settings here are for a tonic of C.
Arabian-type scale
The Scale Tune function allow you to use various tunings of ethnic music. Here is one of the
Arabian scales.
Setting examples
Note Equal Temp. Just (in C)
C 0 0
C# 0 -8
D 0 +4
Eb 0 +16
E 0 -14
F 0 -2
F# 0 -10
G 0 +2
G# 0 +14
A 0 -16
Bb 0 +14
B 0 -12
The values in the above table are in units of 1 cent. Convert these values to hexadecimal,
and transmit them as exclusive data. For example to set the Scale Tune of Part 1 to an
Arabian-type scale, transmit the following data.
F0 41 10 42 12 40 11 40 3A 6D 3E 34 0D 38 6B 3C 6F 40 36 0F 50 F7
00 00 19 1A ??
data checksum
Arabian-type scale
-6
+45
-2
-12
-51
-8
+43
-4
+47
0
-10
-49
F7
(7)
MIDI Implementado
207