Midi; General Introduction; Sending Program Change Messages - Viscount Canticus I Mode D'emploi

Viscount CANTICUS I - II

7. MIDI

7.1 GENERAL INTRODUCTION

MIDI stands for Musical Instrument Digital Interface.
This interface allows electronic instruments, even of different makes and types, to dialogue with each other or with a
computer, in order to exchange a large number of items of information by means of a clearly defined, detailed protocol of
codes.
This allows different functions to be obtained from the connected machines, without necessarily having to touch them at all.
Electronic musical instruments equipped with MIDI interface have one or more DIN 5 pin connectors which are the MIDI
connectors.
There are normally three MIDI connectors, as follows:
- MIDI IN: Connector through which the machine receives the MIDI data transmitted by other units
- MIDI OUT: Connector through which the machine transmits the MIDI data it has generated
- MIDI THRU: Used for series connection of a number of receiver units, this connector transmits the MIDI data exactly as
they are received by the MIDI IN port.
In the Canticus organ, these connectors are located in the connection panel on the left under the first manual.
Transmission and reception of MIDI data are subdivided into channels, so that given one transmitter unit, of all the receiver
units connected, only the one tuned to the transmitter channel will respond.
The MIDI protocol includes 16 channels, so given one transmitter instrument, separate control of up to 16 instruments
connected to it is possible.
When the MIDI transmission channel is selected, we will connect only to the unit with the same receiver channel.
Naturally, if two MIDI units are tuned to different channels they are unable to exchange data.
The Canticus organ is equipped with a MIDI interface which can be TRIPHONIC, meaning that every single manual is
able to transmit and receive on 3 indipendent MIDI channels, one a base channel and two auxiliary channels (A and
B).

7.2 SENDING PROGRAM CHANGE MESSAGES

The MIDI Program Change message allows a given program (e.g. timbre) to be recalled on the connected unit through
direct use of the organ central unit.
MIDI Key
When pushing the MIDI tab, the display will show the numbers of the Program change and of the Bank Select for both
channels MIDI A and B according to its shown correspondance.
The default value are at 0 (values valid from 0 to 127) for both number and Program Change Bank.
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