Was able to make the Sibelius text items have effect
  * Sw
  * Gt
  * Ch

Work in a Organ score to assign to the correct Hauptwerk keyboards by doing this:

In Playback Dictionary Play -> Dictionary -> Staff Text, scroll to bottom to find Ch, Gt, Sw
These are assigned to
  * Sw -> +pipe.swell
  * Gt -> +pipe.great
  * Ch -> +pipe.choir

In Sibelius "Playback Devices" accessible with Play -> Setup
Created configuratoin "Hauptwerk Alt 2"
Device Hauptwerk VST Link 64-bit
Sound set Hauptwerk 4 Sounds
Checked Use manual sound set
No. channels: 4 (which is pedal plus 3 manuals
In Sound Settings, this is really a window into multiple Channels, which appear on the right.
Channel 1
Program Name Pedal
Sound ID: keyboard.organ.pipe.pedal

Channel 2
Program Name Choir
Sound ID: keyboard.organ.pipe.choir

Channel 3
Program Name Great (Hauptwerk Grand Orgue)
Sound ID: keyboard.organ.pipe.great

Channel 4
Program Name: Swell (Schwellwerk, Recit Expressif)
Sound ID: keyboard.progran.pipe.swell

There is a "Organ" staff pair, then you add "Gt" and it causes that part of the staff to be sent as MIDI channel 3

In Hauptwerk, the MIDI channels are mapped:

^ MIDI Channel ^ Keyboard ^
|1|Pedal|
|2|Choir|
|3|Great|
|4|Swell|

I could add 5 - Echo, as needed.

Now in Sibelius, I need to get the pedals to show up on the same score with the Organ.

There is a Parts menu, I just created a new part, selecting the two Organ manuals plus pedal.

24/Aug/2014 22:07

Coming back to this 4 months later. I think it was actually Hauptwerk Alt 3. I think I made a version with less echo/reverb.

2/Jan/2015 21:33