5. Adding Multiple MIDI Keyboards to Your jOrgan
Suppose that the jOrgan disposition that you’re investigating happens to have several keyboards (manuals) and a pedalboard, like many church organs and classical organs—Choir, Great and Swell manuals plus pedalboard. Naturally, if you want to get the maximum tonal richness and artistic benet out of this virtual organ, you will want to be able to play all the keyboards and the pedalboard separately. One approach would be to set up three separate MIDI keyboards, as well as a MIDI pedalboard, each with its own MIDI to USB connector and connect them as indicated in the previous chapter.
Another approach would be to gut an existing organ that already has three manuals and a pedalboard (this is what I did), change it to MIDI input/output and direct all its MIDI signals through a common MIDI to USB routing device. e organ that I used is the Rodgers 340 eatre Organ, Fig. 5.1, that had been damaged and had to be rebuilt anyway. In this discussion of course we will refer to a generic 3-manual-with-pedalboard organ. Your keyboards must be set up to generate a unique channel number for each manual or pedalboard, and your MIDI to USB routing device must be capable of transmitting channel as well as note information, a separate channel for each manual/pedalboard.
Fig . 5 .1 - Rebuilt Rodgers 340 eatre Organ