How To Apply The Arpeggiator Or Harmonist Using An External Sound Device; The Relationship Between Envelope Follow Function And Midi Message; About Pedal Control For External Midi Devices - Roland GR-30 Manual

How to Apply the Arpeggiator
or Harmonist Using an External
Sound Device
U s i n g A r p e g g i a t o r t o A r p e g g i a t e a n
External MIDI sound generator
You can use the GR-30's Arpeggiator to arpeggiate
the sounds of an external MIDI sound generator in
the same way as for the internal first and seconds
tones.
Follow the steps on p. 55 to set "ARPEGGIO/harmo-
ny SEL" to "ARP", "A.-E", "A.1E", or "A.2E." When
you play the guitar the tones of the external MIDI
sound generator are arpeggiated in accordance with
the related settings.
Using Harmonist to Create Harmonies with
the External MIDI Sound Generator
Follow the steps on p. 66 to set "ARPEGGIO/harmo-
ny SEL" as described below according to the kind of
harmony you wish to create.
The guitar is the melodic line, and the external sound
generator is used to create the harmony.
"hAr" or "h.-E"
The GR-30 sound is the melodic line, and the external
sound generator is used to create the harmony.
"h.-E"
The tones of the external sound generator are the
melodic line, and the GR-30 sound is used to create
the harmony.
"h.-b"
The external sound generator and the GR-30's first
tone are the melodic line, and the second tone is used
to create the harmony.
"h.-2"
The external sound generator and the GR-30's second
tone are the melodic line, and the first tone is used to
create the harmony.
"h.-1"
The first tone is the melodic line, and external sound
generator and the GR-30's second tone are used to
create the harmony.
"h.-2E"
The second tone is the melodic line, and external
sound generator and the GR-30's first tone are used to
create the harmony.
"h.-1E"
The Relationship Between
Envelope Follow Function
and MIDI Message
Patches that use the Envelope Follow function (p. 38)
— in other words, patches for which "EF1" or "EF2"
has been selected for the COMMON "PLAY FEEL"
setting — send information on string amplitude
(decay) during play to MIDI OUT on MIDI Control
Change No. 18 (general control 3).
This is mainly used during recording and playback of
performances on the GR-30 itself through a loop con-
nection with a MIDI sequencer (p. 77), and is for
recording guitar-string envelopes (decay information)
along with the played sounds and playing back the
performed sounds without change.
When using an external MIDI sound generator that
can assign tone changes and other effects to any
desired Control Change message that is received, you
can also use No. 18 (sent as described above) to create
changes in sounds.
About Pedal Control for
External MIDI Devices
The GR-30's built-in pedal effects and some expan-
sion pedal effects can also be applied to an external
sound generator.
Pedal Effect 1 (WAH)
Messages about pressing and releasing the pedal
are sent on Control Change No. 19. This becomes
some effect or another when interpreted by the
external sound generator. When "Mod" (modula-
tion) has been selected as the "WAH TYPE" setting
(p. 45), Control Change No. 1 is used, not No. 19.
Pedal Effect 2 (P-GLIDE)
MIDI Pitch Bend messages are used to create an
effect similar to the effect for the built-in sound gen-
erator.
Pedal Effect 3 (HOLD)
This is achieved by causing issuance of MIDI Note
Off messages to be paused during a hold. (A
Control Change No. 64 used with keyboards is not
sent. For control of the internal sound generator,
however, pedal action is sent on Control Change
No. 82 (general control 7).)
When transmitting in Poly mode (p. 72), string-specific
processing is impossible when the same pitch is played
on different strings, so the hold effect can not be perfect-
ly conveyed.
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