randallschmid wrote:From this link, it appears that you need to create a manual soundset in Sibelius for the HW sampleset you are using.
Looking through the Sibelius Reference Guide (available on-line), these are some of the sections that you will want to learn about:
6.1 Working with Playback
6.2 Playback Devices
"There are several types of playback device, including Virtual instruments that use VST."
Pg. 584: Sound Sets
Pg. 586: Manual Sound Sets Page
6.15 Virtual Instruments for Beginners
6.16 Working with Virtual Instruments
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Since they do make mention of VST Instruments, this means that Hauptwerk can be addressed in VST mode, which eliminates the need for a Virtual MIDI Cable.
I would try to go about all of this in some systematic fashion. First, sending something to Hauptwerk in any fashion whatever. It seems you have already accomplished this, since everything was sounding on the Organ's Pedals. Then, try to send it to Hauptwerk in a different way... like playing everything on the Great Manual instead. Then eventually figure out how to separate the different inputs (different Staves in the Score) and route them to different outputs (different Divisions in the Hauptwerk Organ).
It looks like Sibelius uses a lot of its own specific Terminology, which you will have to become familiar with in order to master this Program. But be assured, the Software is intended to handle Orchestration... sending different tracks (staves) to different Instruments of the Virtual Orchestra... simultaneously. (This is in fact done with MIDI Channels, whether or NOT Sibelius likes to acknowledge that little fact.) And the Organ, of course, is merely a collection of Virtual Instruments... each Division (Pedal or Manual) speaking independently, simultaneously, with its own voice.
Playing that Voice here is Step 1. Later on, there might be the issue of How to Control that Voice... what we call "Registration". This is an aspect which Sibelius did not know about when it was being designed, so it would require some sort of work-around. One way to handle this is to teach Sibelius how to operate the "Stepper-Plus" Piston on the Organ, giving you the next one in a series of pre-defined Registrations for that particular Piece as performed on that particular Hauptwerk Sample Set. But this sort of thing will come further down the road, after you have mastered the Basics.
To summarize: Yes, it can be done.