Couplers
Many modern pipe and electronic organs are equipped to communicate with sound modules, sequencers, computers, synthesizers, etc., through a Musical Instruments Digital Interface (the acronym is “MIDI,” pronounced “MID-ee”). MIDI COUPLERS are provided as part of this system. Like intermanual couplers, they allow the “stop combination from one division” (the MIDI sound source) to be played also on another. The MIDI sound source is usually a sound module or a synthesizer.
The organ can send messages (“MIDI data”) out to the sound source. These messages go from the “MIDI Out” port of the organ through a special MIDI cable to the “MIDI In” port of the sound source. They will tell the MIDI source what notes to play, which sounds to use, and other details. The MIDI sound source, in turn, will produce the sounds and send them out through its “Audio Out” jacks via regular audio cables to an “Audio In” jack of an amplifier (such as the amplifier contained in the organ). The sound is made audible, as usual, through any speakers or headphones that are connected properly to the amplifier.
