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CHAPTER 4
MIDI
Introductions
Channel 1
UPPER KEYBOARD
The letters MIDI stand for the Musical Instrument Digital Interface,
Channel 2
LOWER KEYBOARD
an international standard for connecting synthesizers, drum
Channel 3
PEDAL KEYBOARD
single instrument. (The types of data that may be controlled vary
Channel 16
SYSTEM
with the instruments connected through this interface.)
¢ Your new Kawai XR organ is GENERAL MID! and reads (SMF)
(c) Program change
Standard MIDI Files.
The organist can send a sound change command to an external key-
1 Connectors
board to change sound and vice versa.
Instruments with the MIDI interface feature the following three
(d) Volume control
receptacles which accept the DIN plugs on MIDI cables.
The organist can control the volume of an external keyboard from
the organ and vice versa. Your XR series organ can transmit or
receive MIDI EXPRESSION message on channel 16. (EXPRESSION
message on other channels cannot be received nor transmitted.)
(e) Clock signals
Signals from the organ can synchronize the rhythm tempo of an
external MIDI device with those of the organ.
Note: These functions are effective only if the devices are equipped
IN
Accepts the incoming data.
'
OUT
Transmits keyboard, program, and other types of data.
wlliv ese leatutes (See pales 19214):
THRU
Passes the data received on to another instrument.
2 Connections
The MIDI interface allows electronic musical instruments to
exchange keyboard, program, and other types of data. The instru-
ments can be connected so that the data flows only one way — with
only one instrument transmitting and the other(s) receiving — or so
that data flows both ways. The organist specifies the data pathways
by connecting the MIDI OUT terminal of the transmitting instrument
to the MIDI IN terminals of the receiving one. The data received may
also be retransmitted to other instruments through the MIDI THRU
terminal.
cee
OUT
IN
THRU
iN a
Channels
Since the MIDI interface can connect several instruments at once,
the organist needs a way to specify which instrument is to play.
This is done by assigning channel numbers, numbers between 1
and 16, to the instruments.
3 Features
The XR Series organ transmits and receives the following type of
data via MIDI.
(a) Keyboard Data
By connecting the organ to a synthesizer, the organist can play the
organ from the synthesizer keyboard and vice versa.
(b) Channel specification
The organ always assigns the following MIDI channels to the key-
board in transmitting and receiving MIDI data.
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