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Chapter 3. Creating Your Own Sounds<br />
PATCH SCALE<br />
KEY SCALE<br />
If you wish to define a scale for use in Patch mode, press<br />
[SYSTEM] while in Patch mode, and then press [TUNE] located<br />
in the row of function buttons. to access the PATCH SCALE<br />
display. If you wish to define a scale for use in Performance<br />
mode/GM mode, press [SYSTEM] while in Performance mode,<br />
and then press [TUNE] located in the row of function buttons<br />
to access the KEY SCALE display. To make settings for another<br />
Part, use the cursor buttons to select the desired Part.<br />
Define a scale by specifying how much the pitch will differ<br />
from the equal tempered pitch (in steps of 1 cent). In Patch<br />
mode there are separate screens for the white keys and black<br />
keys, and the settings for one octave (C–G) will determine<br />
the tuning for all octaves. In Performance mode/GM mode,<br />
you can make settings for each key in each Part.<br />
* One cent is 1/100th of a semitone.<br />
Equal Temperament<br />
This scale divides an octave into 12 equal parts for the<br />
tuning system that is most widely used in Western<br />
music. The XP-30 employs equal temperament when<br />
the Scale Tune Switch is set OFF.<br />
Pure Temperament (Tonic is C)<br />
With this tuning, the three fundamental chords sound richer<br />
compared to equal temperament. This effect only applies to<br />
one key, and transposition makes the chord ambiguous.<br />
Arabian Scale<br />
In this scale, E and B are a quarter-note lower and C#, F#<br />
and G# are quarter-note higher compared to equal<br />
temperament. The intervals between G and B, C and E, F<br />
and G#, A# and C#, and D# and F# have a natural third (the<br />
interval between a major third and a minor third). With the<br />
XP-30, you can play Arabian scale in G, C and F keys.<br />
<br />
Note Equal Pure temperament Arabian scale<br />
name temperament (tonic C)<br />
C 0 0 -6<br />
C# 0 -8 +45<br />
D 0 +4 -2<br />
Eb 0 +16 -12<br />
E 0 -14 -51<br />
F 0 -2 -8<br />
F# 0 -10 +43<br />
G 0 +2 -4<br />
G# 0 +14 +47<br />
A 0 -16 0<br />
Bb 0 +14 -10<br />
B 0 -12 -49<br />
■ Program Change (PGM CHNG)<br />
TRANSMIT P.C<br />
(Transmit Program Change)<br />
When you want to transmit MIDI messages (Program<br />
Change and Bank Select) to select sounds on an external<br />
MIDI device, make settings in this display and then press the<br />
ENTER button.<br />
Channel (Transmit MIDI Channel)<br />
Select the channel on which the MIDI message will be<br />
transmitted.<br />
P.C# (Transmit Program Change)<br />
Select the Program Number you wish to transmit.<br />
Bnk-MSB (Transmit Bank Select MSB)<br />
Select the MSB (control number 0) of the Bank Select number<br />
you wish to transmit.<br />
Bnk-LSB (Transmit Bank Select LSB)<br />
Select the LSB (control number 32) of the Bank Select number<br />
you wish to transmit.<br />
■ Checking Things Such as the<br />
Installation Status of Wave<br />
Expansion Boards (INFO)<br />
INFO EXP (Information Expansion Board)<br />
The names of Wave Expansion Boards installed in slots EXP-<br />
D and E are displayed. Slots without any boards installed are<br />
indicated “----------------.”<br />
* If for both Expansion D: and Expansion E: an identically named<br />
Wave Expansion Board is displayed, it will be possible to select<br />
data only from the Wave Expansion Board installed in the EXP-<br />
D slot. Also, the XP-30 already contains the data of the three<br />
Wave Expansion Boards listed below, and if the names of any of<br />
these Wave Expansion Boards are displayed, it will be possible<br />
to select only the onboard data (XP-A–C).<br />
- SR-JV80-09 “Session” (XP-A)<br />
- SR-JV80-02 “Orchestral” (XP-B)<br />
- SR-JV80-11 “Techno Collection” (XP-C)<br />
BATTERY CHECK<br />
The XP-30 contains a battery that backs up the data in<br />
internal memory. This display allows you to check the<br />
battery voltage. If the display indicates OK, there is sufficient<br />
battery voltage. If the display indicates LOW, the battery<br />
voltage has run down. Contact your nearby <strong>Roland</strong> service<br />
station to have the battery replaced.<br />
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