Kawai K4 Owner's Manual page 18

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The Fundamentals of MID!
m Exclusive Messages
= Others
21
While MIDI is a standard accepted world-wide, in order to get the most out of the
different types of equipment produced by different manufacturers, each produces
to some extent, their own independent specifications. These are outside of the
specifications prescribed by MIDI, and consist of messages for the transmission
and reception of information unique to a particular piece of equipment. Called
"system exclusive messages," these may be used to exchange tone data between
equipment produced by the same manufacturer and for storing tone data to a
computer.
@ LOCAL Control On/Off
LOCAL Control is a message for the transmission of keyboard and tone data within
the MIDI system. When LOCAL Control is turned off, keyboard data is not sent to
the internal tone generator, but only to the MIDI OUT jack. This function is often
used for the external control of a MIDI tone generator module that is different than
the keyboard being used, or to use only the keyboard as a MIDI keyboard controller.
@ All Notes Off
This is a message which stops all sounds currently being produced.
@ Active Sensing
The purpose of this message is to prevent a bad cable or connection from causing
stuck notes.
@ Reset
This message reinitializes the unit while the power is still on.
@ Common
This indicates the selection or location of a song when a MIDI sequencer or drum
machine are being played in sync.
@ Real Time
This message indicates the timing clock or start/stop, etc., when a synthesizer,
drum machine or other device are being played in sync.
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