I've been doing lots of work learning the Montage controls using "Pitch" as my destination since it's easiest to "hear" a change in pitch and know roughly the interval/difference. In doing so, I've also noticed that "Pitch" as a Control Assign destination is the only way to do what changing the "Pitch" does. If I go into the menu system and adjust the coarse tuning, or the part/common "note shift" - none of these do what "Pitch" does. I'm perfectly happy with that even though sometimes I would prefer a note shift rather than "Pitch" at the part level.
The difference is that "Pitch" stretches the pitch of the sample by doing a pure pitch-bend using the same sample that would otherwise be at the key struck. It seems that "Pitch" as a destination allows for you to stretch by exactly +24 or -64 (or more - haven't nailed down the negative limit although it may be documented as well).
Note shift and coarse tuning, on the other hand, use a different sample (higher or lower) than the note struck. So these notes do not seem "stretched".
Using the pitch bend wheel with +24 seems and wheel in the full-up position (most positive pitch bend) appears to be exactly the same as "Pitch" as a destination set to "24" as an output. Since pitch also can be adjusted up slightly with fine tuning - you can actually assign "+25" to pitch as a destination OR set it to +24 and see that the pitch bend wheel gives you an extra semi-tone worth of positive shift.
The above is exposition and not a problem, or idea, or anything. In fact, for the most part I like the flexibility in having "Pitch" as a destination different than other settings.
Now, using that "pitch" is a new and different thing only available as a destination to an input control - one can use how the voice reacts to "Pitch" as a destination to get new sounds.
I notices that a CFX piano with the "Pitch" destination set to +24 (you can accomplish this with the correct curve and input control setting) will sound like a kind of banjo (think old transistor family electric organ banjo switch) when the octave is set to 2-3 lower in order to make the playing range of the resulting notes back to where they started (or lower).
I also noticed that piano sounds modified this way also sound like a "clav". I haven't run through many different starting sounds to see what I can come up with.
Other sounds can be experimented with to sound how different they may sound when pitch bent up or down.
The limitation here is that if you "Pitch" destination change something +24, then you've run out of any headroom to pitch bend up or down. Also, for performances that do not have all keys sampled - +24 on "Pitch" will steal from the limits used to get the keys between samples - so you'll end up with repeated notes. Either lower the "Pitch" destination amount or find a performance with all keys sampled if you are in this range of the stretch.
Overall, the negative stretch has more flexibility I believe - so you may want to experiment with -24 (or more) and set the octave to +2 (or more).
The purpose of this is mainly to throw out ideas for taking samples and sounds you already have and changing them to different sounds.
Current Yamaha Synthesizers: Montage Classic 7, Motif XF6, S90XS, MO6, EX5R