I just purchased the PMI Clavichords and Forte E libraries and, to my disappointment, found both to be horribly out of tune with all my other sample libraries.
My request for technical support yielded a single response to the effect that both were tuned to earlier (unspecified) musical temperaments and that the only remedy is to retune them in Kontakt 2 (the sampler that I am using).
Unfortunately, I don't have a clue as to how to do this. Transposing the clavichords up a semitone helps a little with the first one or two octaves, but it gets out of tune higher up and some individual notes are just hopeless. And the fortepiano sounds terrible, no matter what I do to it.
It is my understanding that, to retune a keyboard instrument, one would have to tune each key individually to the appropriate pitch (A=440, etc.) but there doesn't seem to be a way to do this in Kontakt 2. All I can see is a way to raise or lower the pitch in semitones (or fractions thereof) and I have no idea what the current pitch is or what it should be changed to so that it is in tune with every other sample library I own.
I also have reservations about retuning samples. Won't that significantly distort the character of the instrument? I mean if the note which is supposed to A(440) is tuned to a pitch somewhere in the neighborhood of Bb and you retune it to 440, now you have an A with the timber it would have if it were tuned to Bb and not, theoretically, what it would sound like if the physical instrument were tuned to A before the sample was recorded. (That's what it sounds like to me when I listen to the sample.) While I wouldn't expect it to be very noticeable at the low end of the instruments' range, I expect that it would be more jarring on the higher notes, where the strings may be made of different material and have a different resonance.
I haven't received a response from PMI regarding my questions about this.
Finally, even without retuning, I am getting a nasty delay on the release samples for the clavichord instruments. It sounds like a bad echo effect. Really, to me it sounds like there is way too much time between the release of the note before the release sample starts. I have no idea how to fix this, other than using the instruments without the release samples -- which makes it lose even more character.
I would be grateful for any advice on how to fix these problems because these instruments are utterly useless to me in their current condition. Also, I wanted to alert anyone tempted to purchase PMI instruments from Sampletekk that there is no indication on its web site that they are tuned to different temperaments.