System Messages - Roland JV-30 Owner's Manual

OAftertouch
Messages
Using MIDI 2
These messages convey the
amount
of pressure
that
is
further put
on
a key
after
it
has
initially
been
pressed.
There
are
two
types of Aftertouch;
Channel and
Polyphonic.
Channel
After-
touch provides control
based
on
each MIDI
channel,
whereas Polyphonic Aftertouch
manages
the information
on an
individual
key
basis.
Although the JV-30 cannot transmit
Aftertouch
messages,
it is
capable of responding
to
both types of Aftertouch messages
v^/hen received
from an external device.
Reception of channel aftertouch
and
polyphonic aftertouch
on
the JV-30
is
disabled
in
the
default factory setting
or
when
receiving a
GS
reset
message.
When
you
wish to
use these
functions, set
them
by transmitting exclusive
message from
external
MIDI
device.
See the MIDI
implementation chart for
more
details.
O
Program Change Messages
These messages convey information
about changes
in
the
sound
used.
O
Control
Change Messages
These messages
are used to
enhance
the
expressiveness of a
performance,
and
include Vibrato,
Hold,
Volume,
and
Pan.
On
the JV-30, a value of
"0"
for
the Control
Number
is
employed
to
change
Variations.
System Messages
System
Messages
include Exclusive
messages; data concerned with synchronized
play, as well
as diagnostic-use
data.
On
the JV-30
it is
mainly Exclusive
messages that are recognized.
O
Exclusive
Messages
Exclusive
messages handle information
such
as that related to a device's
own
unique
sounds.
Generally,
such
messages
can
be exchanged
only
between
devices of
the
same model
(by
the
same
manufacturer).
On
the
JV-30 they are mainly
useful for storing
Tone and system
function data,
and
the
settings
for Parts into
a sequencer.
*
Whenever
Exclusive
messages
are to
be used
for
communication, both devices
need
to
be set to the
same
Unit
Number
(» p.35).
Concerning MIDI Implementation
Charts
MIDI Device B
MIDI Device
A
rniumil
teeognii Ettmtrki
MIDI makes
it
possible for a
wide
range of musical data to
be communicated, but there
are
many
differences
between
devices. For
this
reason every
owner's manual
includes
a MIDI Implementation
Chart,
which you
should look
at
to
determine the
types of
MIDI
messages
it is
capable of handling.
Wherever a
"O"
appears, the unit
is
capable
of
handling that type of data.
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