Midi Applications; What Is Midi; How And What To Connect - Johannus Rembrandt 200 User Manual

Midi applications

What is MIDI?

MIDI is the abbreviation of Musical Instruments Digital Interface. With MIDI different musical
instruments can be connected with each other or with a computer. For example it is possible to
play on your organ and at the same time on a synthesizer or an expander module. The MIDI
standard is partly based on hardware. Next to that it is a worldwide agreement about the way
music and sound are being interpreted and communicated between devices that have MIDI
capability. The MIDI codes sent by a Johannus organ tells e.g. which key is played.
Midi exists of the following parts:
! MIDI-connections (MIDI IN, MIDI MOD., MIDI SEQ.).
! MIDI-stops.
! A device (e.g. synthesizer) that you want to connect through MIDI.
! Connection cables
The MIDI stops have a number. The MIDI number for Great on the Rembrandt 200/2000 is
number 1 and with Rembrandt 300/3000 the MIDI Great is number 2. This number indicates the
MIDI channel used to transfer key information through MIDI SEQ. when playing the Great. MIDI
has at least 16 channels to transfer Data. The MIDI stops determine from which keyboard(s) you
send key information to other device(s).

How and what to connect?

Imagine you want to connect 3 expander modules to your organ. One you want to play from the
Great, the other from the Swell and the third one from the Pedal.
The following has to be done:
1. Connect the expander modules with the MIDI cables (DIN).
2. Switch on MIDI stop Great 1. The expander module must be configured so that it can only
receive data through the channel programmed to MIDI stop Great 1 (see under
"Programmable MIDI").
3. Switch on MIDI stop Swell 2. Set the second expander module for the channel programmed
to MIDI stop Swell 2.
4. Switch on the MIDI stop Pedal 3. Set the third expander module for the channel programmed
to MIDI stop Pedal 3.
User's Manual
JOHANNUS JOHANNUS
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Rembrandt 200, 300, 2000 and 3000 AGO