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MIDI
MIDI (an acronym for Musical Instrument Digital Interface) is a technical standard that defines a
communications protocol that is used worldwide to connect a vast variety of electronic musical
instruments, computers, and other audio devices. These devices communicate via MIDI messages
that are interpreted and translated into notes, program changes, control changes, events and more.
This instrument features 32 independent MIDI parts (corresponding to as many different MIDI
channels), each one of these can play a different sound at the same time. The first 16 parts (GM
parts) are used by the GENERAL MIDI sound module of the PLAYER, while the last 16
(KEYBOARD parts) are used by the VOICE sound engine.
In the BACK PANEL you can see four different physical MIDI ports:
• two are labelled IN1(GM) and IN2(KEYB) and are used to receive MIDI message from
other devices, such as MIDI master keyboards, accordions or sequencers;
• one is labelled OUT and is used to transmit MIDI messages from this instrument to other
devices;
• one is labelled THRU and is used to replicate incoming messages. All incoming MIDI data
to the IN ports is passed directly to the THRU port. This allows many MIDI devices to have
their MIDI connections daisy chained together, all being driven by a common device.
Because only 16 channels can be transmitted/received at the same time through a port (as defined
by the MIDI standard), each one of the OUT and IN1 ports can operate either as GM port or as
KEYBOARD port:
• MIDI OUT as GM port: passes MIDI messages coming from the GM parts (the messages
generated by the GENERAL MIDI sound module when a MIDI file is playing) to other
devices.
• MIDI OUT as KEYBOARD port: passes MIDI messages coming from the KEYBOARD
parts to other devices.
• MIDI IN1 as GM port: receives MIDI messages coming from other devices and passes them
to the GM parts (to the GENERAL MIDI sound module).
• MIDI IN1 as KEYBOARD port: receives MIDI messages coming from other devices and
passes them to the KEYBOARD parts (to the VOICE sound engine).
110 - KETRON - LOUNGE
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