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14
Chapter 1 Try Playing Some Sounds
Setting the MIDI Channel
(MIDI CHANNEL)
Setting the Transmission Mode (MONO/POLY)
The GI-20 features two kinds of modes to transmit MIDI
messages.
fig.01-09
* With the factory settings, all patches are set to MONO
MODE.
MONO (MONO MODE)
In this mode, each individual string uses a separate channel,
thus totaling six channels.
Since each string uses a different MIDI channel, you can
select different sounds for each string and continuously
change the pitch data when using string bending and other
special techniques with specific strings. However, this
requires a multitimbral sound module.
POLY (POLY MODE)
In this mode, the information for all six strings is transmitted
over a single channel.
Since the MIDI messages for all six strings are transmitted
over a single channel, it simplifies the settings for the sound
module and reduces the number of MIDI channels used.
However, options are more limited, for example, the same
sound must be selected for all of the strings.
* In POLY mode, the Pitch Bend/Glide and Vibrato set in
Assign (p. 19) function as follows.
When chords are played, Pitch Bend and Glide change in
semitone steps and Vibrato does not function. These function
normally when you play notes individually.
1. Turn the PARAMETER knob to “MIDI CHANNEL.”
fig.01-10
2. Press [SELECT] to select MONO/POLY.
When MONO/POLY is selected, only the leftmost
indicator lights up.
fig.01-11
3. Press [PATCH/VALUE] to select either MONO or
POLY.
fig.01-12
4. To save the setting, carry out the Write procedure (p.
26).
* If you do not want to save the setting, turn the PARAMETER
knob to return to “PLAY MODE.”
5. When you have finished making the settings, turn the
PARAMETER knob to return to “PLAY MODE.”
Setting the MIDI Transmit Channel
(BASIC CH)
This sets the GI-20’s MIDI Transmit channel (here called the
“basic channel”). Set the MIDI channels as shown below
according to whether the GI-20 is in POLY or MONO MODE.
When in POLY MODE
The performance data for all of the strings is transmitted over
the Basic channel.
When in MONO MODE
1st String: Transmitted over the Basic channel.
2nd String: Transmitted over the Basic channel + 1.
3rd String: Transmitted over the Basic channel + 2.
:
6th String: Transmitted over the Basic channel + 5.
* With the factory settings, all patches are set to MONO
MODE, and the Basic channel is set to Channel 1.
1st
Basic Channel
2nd
Basic Channel + 1
3rd
Basic Channel + 2
4th
Basic Channel + 3
5th
Basic Channel + 4
6th
Basic Channel + 5
MIDI Message
Sound
Module
MONO
Basic
Channel
MIDI Message
POLY
String
1st
2nd
3rd
4th
5th
6th
String
Sound
Module
Lit
MONO POLY