The GR-30’s built-in sound generator normally
receives in the Mono mode, which uses six MIDI
channels. This means that when using the GR-30 as
an expansion sound generator for a general external
device (such as a keyboard or sequencer system), sin-
gle notes cannot be sounded without modifying some
settings.
If chords must be sounded, follow the steps below to
call up the “Polyphonic Receive” function when using
the GR-30. This lets you use the GR-30 as a poly-
phonic MIDI sound generator using only one MIDI
channel.
<Calling Up the “Polyphonic Receive” Function>
Switch off the power, then turn it back on while hold-
ing down the [+] button. The message “L_P” (local
control off, polyphonic receive) appears on the dis-
play, and the unit starts up.
✽
When start up with the Polyphonic Receive function on,
local control is always automatically turned off.
❍ Characteristics of Operation During
Polyphonic Receive
• Up to 28 notes (28 voices) can be sounded poly-
phonically using the tones of the currently selected
patch. (The number of notes that can be played
simultaneously varies according to the tones and
layers in use. Some tones use 1 voice and others use
2 voices.)
• The “TRANSPOSE” and “LAYER” states are all
based on the settings for the first string.
• If Note On messages that exceed the permitted
number of sounds are received, the sounds are
dropped out sequentially, starting with the first
ones (first in, first out).
• The Polyphonic Receive function stops when the
power is turned off (that is, the setting is not saved
in memory).
• The Polyphonic Receive function cannot be used
together with the Bend Data Thin function (p. 79).
If required, switch on the power while simultane-
ously holding down the [+] and [-] buttons.
• When using the GR-30 as an expanded sound mod-
ule for a MIDI keyboard or the like, the “HOLD”
and “P-GLIDE” functions assigned to the unit’s
pedals cannot be used. (Play does respond to oper-
ation of the Bender knob on the keyboard. Also,
Control Change No. 64 due to operation of the key-
board’s damper pedal cannot be recognized only
when receiving in Poly mode has been selected.)
• Arpeggiator does not function at all when using the
function for receiving in Poly mode.
✽
Even when using the GR-30 as an external sound genera-
tor while left for receiving in Mono mode (which uses six
channels), the sending channels from the external device
must be set to match the starting channels on the GR-30.
82
Using the GR-30 as an Expansion Sound Device for
Keyboards or other MIDI Devices (Poly Mode Reception)
Using the GR-30 with a Number of Guitars (GUITAR SELECT)
There may be times during live performances when
you have to rapidly switch the guitars that use the
GR-30.
For instance, you may need to use both a solid guitar
and an acoustic guitar for some songs, or a broken
string may force you to switch to a spare guitar
equipped with a GK-2A.
In cases like these, the GR-30 can save the settings for
pickup sensitivity (PICKUP SENS 1 to 6) matched to
the state of the installed GK-2A for up to four guitars
(i.e., four settings). This means that you can save the
sensitivity settings for all the guitars that you are like-
ly to use, allowing you to change guitars smoothly
when the time comes.
<Getting Ready and Changing Guitars>
1. Press [EDIT/PLAY] to enter the Edit mode, and
set the PARAMETER SELECT dial to “GUITAR
SELECT.”
2. Use [+] and [-] to choose “Gt.1” (guitar 1).
3. Set the PARAMETER SELECT dial to “PICKUP
SENS (1-6)” and follow the steps on p. 14 to adjust
the sensitivity.
4. Set the PARAMETER SELECT dial to “GUITAR
SELECT” and use [+] and [-] to choose “Gt.2” (gui-
tar 2), then connect the GR-30 to the next guitar
(GK-2A) and make the sensitivity setting.
5. Repeat the same steps to set the sensitivity for up
to four guitars (“Gt.4”). When you’re done,
change the “GUITAR SELECT” setting to the num-
ber of the guitar you intend to use when the power
is turned on, then press [EDIT/PLAY] to return to
the Play mode.
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