[PD] Getting frequencies from chords

Miller Puckette msp at ucsd.edu
Tue Nov 10 19:55:57 CET 2020


That is a wonderful question.  Here's a deep and thoughtful paper about
it...

https://static.uni-graz.at/fileadmin/_Persoenliche_Webseite/parncutt_richard/Pdfs/Pa11_tonality.pdf

The rough answer:  using theory of consonance and dissonance that goes bacy
to Helmholz, Krumhansl and Kessler predicetd an answer and set out to measure
whether it worked on real human subjects.  The answer is, not exactly; there
are places where learned expectations (from Western music theory for instance)
win out over the psychoacoustical predictions.

Or in short: yes, there's a formula but your ears might not always agree with
it.

cheers
Miller

On Tue, Nov 10, 2020 at 11:36:02AM -0600, topo bot wrote:
> Hi, i need  to automatically get all the frequencies from a chord.
> For example imagine i have chords as frequencies in messages:
> 
> Chord1  = [195, 174, 146, 116, 58(
> Chord2  =  [ 155, 130, 103, 87, 43(
> 
> I want to do something like this: ?Chord1.giveMeAllFrequencies
> And then get a list with the frequencies
> 
> 
> Is it posible to automatically get all the frequencies that fit into each
> chord(all the frequencies that don't clash)?
> 
> I dont know too much about musical theory and i know i can do this by ear ,
> but is there an automatically way to get this?
> 
> I hope is clear.
> 
> 
> Cheers

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