batsbrew

codamedia
An acoustic piano is a pain, but flute or sax... or any woodwind/brass instrument? They are not fixed - they have a lot of variance for tuning. 

i think it should go without saying,
that we are talking in particular, about electric stringed instruments,
and to a large degree, any synth.
 

i don't assume anything 
 
The comment I quoted from "jamesg1213" looked like he was referencing the acoustic versions... I left your quote in for context. Sorry if I stepped out of line! 
 

I think in terms of managing a session, this is really the same as wanting exotic instrumentation. Which is to say, either the client can sort it out - and if they're seriously committed to 432, why haven't they? - or I can sort it out for an additional charge, with their understanding that the budget will constrain what can be achieved.
 
Zooming out from there, I think wacky requests like this are a bit of a red flag. If I had a band come in and say "we've got all our gear sorted out so we can play everything in 432", then great, good for them. If I had a band come in saying "we neither do this in rehearsal nor know how to do it, but it's a big requirement for this recording", then I know I'm dealing with whimsical people who lack focus, and I probably want to run away from this project if I can afford to.

Option three is a client who says "we neither do this in rehearsal nor know how to do it, but we can pay whatever it costs, with half up-front", but I don't think that client exists.

That's because there's a whole elaborate story (not saying it's not true) going through the conspiracy world and through the new age world. The new agers say it has healing properties and the conspiracy guys say it's being withheld from us.
 
I read this whole thing recently which is actually a pretty good take on the history of how and why the change occurred: The Suppression of the Solfeggio Frequencies. But yeah, you can definitely retune the Kontakt synths, but there's no exact presets either, meaning you'll have to do some math to translate it into cents. At this point I'm willing to bet there are a good number of plugins with this option, but I doubt they're as good and I doubt your client is going to be willing to buy you some new ones.

FWIW 432 Hz is very close to 32 cents flat from 440 Hz.
 
440*2^(-0.32/12) = 432
 
And IIRC, A-432 is called the "Verdi A" as it is was used in that time period up to around the 1940s.
 

Would pitching-up with Melodyne after mixdown be acceptable to your clients?
I have done this and find small pitch changes keep their format reasonably well.

This is a pretty great video about this subject: https://youtu.be/EKTZ151yLnk 
 
Please note... The first half of the video is a joke (EDIT: up until 1:47) The second half is very informative.

Jarsve
Thanks guys. But some people dont want to listen to 440 Hz so you have to start the project in 432 Hz. They think that listening to music in 440 Hz is dangerous. Its easy to laugh at it, but for them its really imorprtant and then they need respect. 

They need psychological help. That's what they need.

 Well according to Google and a bloke on facebook(so it must be true)
 
43,200 MPH = 12 miles per second is the Speed of the Sun
{hence the solar system}
43,200 Seconds = 12 hours of the Day
43,200 Seconds = 12 hours of the Night
86,400 Seconds = 24 hours
432 Multiplied by 2 (432 x 2) = 864
864 Thousand Miles = Diameter of the Sun (actually 864,938 miles)
432 Thousand Miles = Radius of the Sun (actually 432,450 miles)
432 Divided by 2 (432 / 2) = 216
216 Hundred Miles = Radius of the Moon
432 Squared (432 x 432) = 186,624
(Speed of Light 186,000 miles per second)
or
(Speed of Light is exactly 299792458 metres per second)
Great Pyramid of Giza, Coordinates is exactly 29.9792° N, 31.1344° E
 
This has all blown my mind so Im off for a pint. :-)