Re: [LAU] Chord finder

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To: Burkhard Wölfel <versuchsanstalt@...>
Cc: linux-audio-user <linux-audio-user@...>
Date: Saturday, July 14, 2012 - 1:55 am

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On Fri, Jul 13, 2012 at 9:55 PM, Burkhard W=F6lfel =
wrote:

>

I dont have a B# vs C example ready offhand but here is an example where G#
is a different acoustical phenomenon from Ab in C major context.

In Beethoven piano sonata no 32 2nd movement there is a Ab and a G# within
a couple of bars of each other.

If I put my keyboard in 'Just major-C' tuning, the G# sounds right, the Ab
sounds wrong
If I put it into 'Just minor-C' tuning the Ab sounds right the G# sounds
wrong

My explanation (to be taken with liberal salt given my music theory and
tuning theory novice status):
The augmented fifth (G#) is a different note from the minor sixth (Ab)
Equal temperament chooses a midpoint between the two as an approximation to
both
They are 772 800 813 cents in http://www.kylegann.com/Octave.html

The above is a more theoretical discussion.
Pragmatically, one cannot play Beethoven in Just intonation.
But equally(!) Equal temperament is suboptimal

It's the listening ear that turns sound into music.

Nice quote!

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On Fri, Jul 13, 2012 at 9:55 PM, Burkhard W=F6lf=
el <versuchsanstalt@gmx.de> wrote:
Am 12.07.2012 um 17:42 schrieb R=
ustom Mody <<=
/a>
rustompmody@g=
mail.com
>:
I rec=
ently got into an argument (on the python list so more OT there than here :=
-) ) about whether a B# is the same=A0 as C.=A0
They are different point=
ers to the same acoustic phenomenon. Which can be useful to have in one con=
text and confusing in another one. =A0=A0
I dont have a B# vs C example ready offhand but here is an exampl=
e where G# is a different acoustical phenomenon from Ab in C major context.=
In Beethoven piano sonata no 32 2nd movement there is a Ab and a G#=
within a couple of bars of each other.
If I put my keyboard in 'Just major-C' tuning, the G# sounds ri=
ght, the Ab sounds wrongIf I put it into 'Just minor-C' tuning =
the Ab sounds right the G# sounds wrongMy explanation (to be taken =
with liberal salt given my music theory and tuning theory novice status):
The augmented fifth (G#) is a different note from the minor sixth (Ab)E=
qual temperament chooses a midpoint between the two as an approximation to =
bothThey are 772 800 813 cents in http://www.kylegann.com/Octave.html
The above is a more theoretical discussion.Pragmatically, one canno=
t play Beethoven in Just intonation.But equally(!) Equal temperament is=
suboptimal
It's the listening ear that turns sound into music.Nice quote!

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Messages in current thread:
Re: [LAU] Chord finder, Burkhard Wölfel, (Fri Jul 13, 4:25 pm)
Re: [LAU] Chord finder, Rustom Mody, (Sat Jul 14, 1:55 am)
Re: [LAU] Chord finder, Bob van der Poel, (Sat Jul 14, 2:10 am)