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MIDI Implementation
<Example4> Getting Temporary Patch data of whiole part (RQ1) at once;
According to the “Parameter Address Map” (p. 159), the start address of Temporary Patch
of whole part is assigned as following:
10 00 00 00 Temporary Patch (Part 1)
10 01 00 00 Temporary Patch (Part 2)
:
10 0F 00 00 Temporary Patch (Part 16)
The offset address of Patch is also assigned as follows:
00 00 00 Patch Common
:
00 10 00 Patch Oscillator (Zone 1)
:
00 20 00 Patch Envelope (Zone 1)
:
00 40 00 Patch LFO (Zone 1)
:
00 50 00 Patch COSM1 (Zone 1)
:
00 60 00 Patch COSM2 (Zone 1)
:
00 70 00 Patch Arpeggio (Note 1)
:
00 7F 00 Patch Arpeggio (Note 16)
As the data size of Patch Arpeggio is 00 00 00 42H, summation of the size and the start
address of Temporary Patch (Port 16) Arpeggio (Note 16) will be;
10 0F 00 00H
00 00 7F 00H
+) 00 00 00 42H
10 0F 7F 42H
And the size that have to be got should be;
10 0F 7F 42H
-) 10 00 00 00H
00 0F 7F 42H
Therefore the system exclusive message should be sent is;
F0 41 10 00 53 11 10 00 00 00 00 0F 7F 42 ?? F7
(1) (2) (3) (4) (5) address data checksum (6)
(1) Exclusive Status (2) ID (Roland) (3) Device ID (17)
(4) Model ID (V-Synth) (5) Command ID (RQ1) (6) End of Exclusive
Calculating the checksum as shown in <Example 2>, we get a message of F0 41 10 00 53 11
10 00 00 00 00 0F 7F 42 20 F7 to be transmitted.
■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 B. Though the settings are made while working with one octave, the fine
adjustments will affect all octaves. By making the appropriate Scale Tune settings, you can
obtain a complete variety of tuning methods other than equal temperament. As examples,
three possible types of scale setting are explained below.
❍Equal Temperament
This method of tuning divides the octave into 12 equal parts. It is currently the most widely
used form of tuning, especially in occidental music. On the V-Synth, the default settings for
the Scale Tune feature produce equal temperament.
❍Just Temperament (Tonic of C)
The principal triads resound much more beautifully than with equal temperament, but this
benefit can only be obtained in one key. If transposed, the chords tend to become
ambiguous. The example given involves settings for a key in which C is the keynote.
❍Arabian Scale
By altering the setting for Scale Tune, you can obtain a variety of other tunings suited for
ethnic music. For example, the settings introduced below will set the unit to use the Arabian
Scale.
Example Settings
Note name
Equal Temperament Just Temperament (Key-tone C) Arabian Scale
C0 0 -6
C# 0 -8 +45
D0 +4 -2
Eb 0 +16 -12
E0 -14 -51
F0 -2 -8
F# 0 -10 +43
G0 +2 -4
G# 0 +14 +47
A0 -16 0
Bb 0 +14 -10
B0 -12 -49
The values in the table are given in cents. Convert these values to hexadecimal, and transmit
them as Exclusive data.
For example, to set the tune (C-B) of the Part 1 Arabian Scale, send the following data:
F0 41 10 42 12 40 11 40 3A 6D 3E 34 0D 38 6B 3C 6F 40 36 0F 76 F7
■ASCII Code Table
Patch Name and Performance Name, etc., of MIDI data are described the ASCII
code in the table below.
+——————+——————+——————++——————+——————+——————++——————+——————+——————+
| D | H | Char || D | H | Char || D | H | Char |
+——————+——————+——————++——————+——————+——————++——————+——————+——————+
| 32 | 20H | SP || 64 | 40H | @ || 96 | 60H | ` |
| 33 | 21H | ! || 65 | 41H | A || 97 | 61H | a |
| 34 | 22H | " || 66 | 42H | B || 98 | 62H | b |
| 35 | 23H | # || 67 | 43H | C || 99 | 63H | c |
| 36 | 24H | $ || 68 | 44H | D || 100 | 64H | d |
| 37 | 25H | % || 69 | 45H | E || 101 | 65H | e |
| 38 | 26H | & || 70 | 46H | F || 102 | 66H | f |
| 39 | 27H | ` || 71 | 47H | G || 103 | 67H | g |
| 40 | 28H | ( || 72 | 48H | H || 104 | 68H | h |
| 41 | 29H | ) || 73 | 49H | I || 105 | 69H | i |
| 42 | 2AH | * || 74 | 4AH | J || 106 | 6AH | j |
| 43 | 2BH | + || 75 | 4BH | K || 107 | 6BH | k |
| 44 | 2CH | , || 76 | 4CH | L || 108 | 6CH | l |
| 45 | 2DH | — || 77 | 4DH | M || 109 | 6DH | m |
| 46 | 2EH | . || 78 | 4EH | N || 110 | 6EH | n |
| 47 | 2FH | / || 79 | 4FH | O || 111 | 6FH | o |
| 48 | 30H | 0 || 80 | 50H | P || 112 | 70H | p |
| 49 | 31H | 1 || 81 | 51H | Q || 113 | 71H | q |
| 50 | 32H | 2 || 82 | 52H | R || 114 | 72H | r |
| 51 | 33H | 3 || 83 | 53H | S || 115 | 73H | s |
| 52 | 34H | 4 || 84 | 54H | T || 116 | 74H | t |
| 53 | 35H | 5 || 85 | 55H | U || 117 | 75H | u |
| 54 | 36H | 6 || 86 | 56H | V || 118 | 76H | v |
| 55 | 37H | 7 || 87 | 57H | W || 119 | 77H | w |
| 56 | 38H | 8 || 88 | 58H | X || 120 | 78H | x |
| 57 | 39H | 9 || 89 | 59H | Y || 121 | 79H | y |
| 58 | 3AH | : || 90 | 5AH | Z || 122 | 7AH | z |
| 59 | 3BH | ; || 91 | 5BH | [ || 123 | 7BH | { |
| 60 | 3CH | < || 92 | 5CH | \ || 124 | 7CH | | |
| 61 | 3DH | = || 93 | 5DH | ] || 125 | 7DH | } |
| 62 | 3EH | > || 94 | 5EH | ^ ||——————+——————+——————+
| 63 | 3FH | ? || 95 | 5FH | _ |
+——————+——————+——————++——————+——————+——————+
D: decimal
H: hexadecimal
* “SP” is space.