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MIDI Implementations
Control changes (recognised)
Controller 7 (07h)
General volume, with volume values 0 (00h) – 127 (7Fh).
Controller 11 (0Bh)
Expression pedals, with volume values 0 (00Fh) – 127 (7Fh).
Program changes (transmitted/recognised)
Organ stops: Depends on the number of stops and the sequence of stops.
MIDI stops (programmable): 1-128.
System exclusive messages (transmitted/recognised)
Each 'sys ex' (system exclusive) message mainly looks the same. The first 7 bytes and the last
byte are always the same. Only the value of the 8th byte varies. This is the 'sys ex message' that
Johannus generally uses: F0 00 4A 4F 48 41 53 XX F7 (hexadecimal). The 'sys ex messages'
described below only indicate the value of the 8th byte (XX) and the output from which it is
transmitted.
All stops off
The 'all stops off' sys ex code is 7F.
This sys ex code is transmitted through the MIDI SEQ.
output when the 0 button is pressed for a long time. At receiving an 'all stops off' sys ex code, all
stops on the instrument are switched off.
Pushbutton values
When a button is pressed, a sys ex code is transmitted with the value of the button that is
pressed (for example PP = 00 P = 01) through the MIDI MOD. output.
These sys ex codes are only important when the Johannus sound module CSM 128 has been
connected to the instrument.
Other MIDI codes (transmitted)
Press the 0 button to transmit the sys ex code, 'all stops off' and all volume settings through the
MIDI SEQ. output.
JOHANNUS
the
revolution
MIDI Implementations - 3 -
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