Pianoteq5.1 as VST instrument in Sibelius 7.5.1

I suppose each of the two instances could go to their own channels, so basically you'd be loading Pianoteq twice, but loading a different sound in each instance.

You can also setup MIDI Program Change messages so that they are assigned to particular patches you want to use.

It might be a good time to whip out the Sibelius manual and see how it deals with VST instances.

You can simply MIDI learn the tremolo rate slider to a MIDI CC, then send a CC message from a particular point in the score?

Hi, I noticed that option but I do not seem to understand. By "learn" you think of assigning a MIDI controller to initialize a preset? How can I do this, please? I did not find out.

(to learn = učiti, to teach = poučiti, to assign = dodijeliti, please excuse me for this excursion ;-))

I think Chopin87 is talking about an actual, real-life vibraphone.

Anyways, right-click the tremolo rate slider, you have a MIDI dropdown there, then "Assign MIDI event". Then send the relevant MIDI event that is going to control this slider. Usually a MIDI CC, but it can be almost anything.

Also check out Options->MIDI section.

move the MIDI controller that you want to assign = put your foot on the pedal... ;-)

EvilDragon was right I was actually talking about how a real vibraphone works.
You need a midi controller (a pedal, knob on a master keyboard) to send the CC data you want to automate. If you want to automate a parameter using "only" a notation program (I know something about Finale not Sibelius but it should be the same) you have to create an articulation that is able to send a specific CC value.
Then in Pianoteq ---> Options -----> Midi, click on "insert".
You have two empty boxes: in the first one you choose the Control Change (the number of which is the same of the CC value you selected in your DAW). This is going to be the switch that activates the articulation;
On the second one you choose the Parameter you want to automate. For example if you have Tremolo as the first FX in the Effects chain and you want to automate "Rate", you choose Effect 1 Param 1 and set the range.
In the end Save the Midi Mapping for your Vibraphone so you can set it up easily.
Hope this helps, it is much easier to do than to explain it, believe me!

I have a preset I made for example where the sustain pedal (CC64) triggers sustain and tremolo rate using this midi mapping I suggested you and the vibes are mutes. It seems much closer to the original for me.

You can use 3rd party hosting sites, like www.imgur.com for images, or Dropbox or Google Drive for other kinds of files...

This is the preset I created.

Vibes.zip

There is the Midi mapping I described and the fxp of the instrument. Place them in the Pianoteq  preset folder (in Windows is usually inside AppData). Select the midi mapping through the Options ---> Midi then select this fxp.
It should be a good starting point for creating your own. That's the best I can do.

as it happens:
https://drive.google.com/file/d/0B0LM1K...sp=sharing
An excerpt of the current set of MIDI controllers from the official MIDI manufacturer's page
http://www.midi.org/index.php

Merry Christmas, my friends!
Finally I made it going: Vibraphone with different vibrato speeds in Sibelius 7.5 with the Instrument "Pianoteq Vibraphone V-M".
This description is of course specialised to users who use Pianoteq as VST plug in with Sibelius notation software.
How I do this, having installed the instrument with the VST .dll being added to the AVID VST-plugins folder:
1.) in Sib, "preferred sounds", choose vor vibraphone the Pianoteq instrument.
2.) in the mixer, click the symbol * to open the Pianoteq plugin. In the instrument, select "Vibraphone V-M tremo".
3.) In the instrument, click "effects", there, click "Tremolo", there, activate the lower controller "mono" ("lamp" lights green).
4.) Save as personal setting to be active everytime the instrument is launched.
5.) In Sibelius playback dictionary, create new "Line texts":
a) vib fast
b) vib medium
c) vib slow
d) vib very slow
e) vib zero
6.) assign those texts to "Control change" as follows:
a) Controller 76, controller value: 60
b) Controller 76, controller value: 48
c) Controller 76, controller value: 39
d) Controller 76, controller value: 35
e) Controller 76, controller value: 0
Please note that looking up the vibrato settings in the pianoteq instrument, you will see that the piano speed varies from 0 Hz to 100 Hz, so full tremolo speed (controller value: 127) will result in a VERY special modulation effect.
You are free to try out changing the vibrato intensity control, since the default setting is quite moderate and might get lost in a huge orchestra sound.
Anyone pursuing the same effect might be invited to try it out - you must be sure you need it because you'd have to buy at Pianoteq - and return to this entry if more questions arise. Just in case I forgot to mention any important step.