Re: [LAU] Chord finder

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To: Rustom Mody <rustompmody@...>
Cc: linux-audio-user <linux-audio-user@...>
Date: Thursday, July 12, 2012 - 4:43 pm

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Hello,
I'm new to this list. This topic immediately got my attention because of
some surprising statements related to music theory that were posed.

On Thu, Jul 12, 2012 at 5:42 PM, Rustom Mody wrote:

>

I don't understand what you mean with "theory-of-musical-harmony". Not
intended to repeat an earlier discussion on another list, but C and B# are
definitely not the same. They happen to represent the same frequency in
equal temperament but that's all. On keyboards with 12 fixed pitches per
octave (like a piano) they will also be represented by the same key,
whether tempered equal, according to Werckmeister's theories or else.
However theoretically they are different notes. That's one big part of the
problem piano tuners have to deal with. Very recently I published an
external for Pure Data (http://student-kmt.hku.nl/~funs/software.html) that
translates midi notes to frequency with a variable semitone and a settable
modulation (set of notes to be represented by the 12 keys). One of its
effects is that B# and C represent a different frequency unless a semitone
is exactly set to half a whole tone (like in equal temperament, equal
division in 12). I don't feel anything breaking in any case, or I might
have understood you wrong.

--Funs

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Hello,I'm new to this list. This topic immediately got my attention=
because of some surprising statements related to music theory that were po=
sed.On Thu, Jul 12, 2012 at 5:42 PM, Rus=
tom Mody <rustompmody@gmail.com> wrote:
I recent=
ly 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 If we allow that they may not =
always be the same then we have a case where the theory-of-musical-harmony =
(may be) breaking.

I don't understand what you mean=
with "theory-of-musical-harmony". Not intended to repeat an earl=
ier discussion on another list, but C and B# are definitely not the same. T=
hey happen to represent the same frequency in equal temperament but that&#3=
9;s all. On keyboards with 12 fixed pitches per octave (like a piano) they =
will also be represented by the same key, whether tempered equal, according=
to Werckmeister's theories or else. However theoretically they are dif=
ferent notes. That's one big part of the problem piano tuners have to d=
eal with. Very recently I published an external for Pure Data (http://student-kmt.hku.nl/~fu=
ns/software.html
) that translates midi notes to frequency with a variab=
le semitone and a settable modulation (set of notes to be represented by th=
e 12 keys). One of its effects is that B# and C represent a different frequ=
ency unless a semitone is exactly set to half a whole tone (like in equal t=
emperament, equal division in 12). I don't feel anything breaking in an=
y case, or I might have understood you wrong.
--Funs

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Messages in current thread:
Re: [LAU] Chord finder, Ralf Mardorf, (Tue Jul 3, 12:12 am)
Re: [LAU] Chord finder, Bob van der Poel, (Tue Jul 3, 12:34 am)
Re: [LAU] Chord finder, Ralf Mardorf, (Tue Jul 3, 12:52 am)
Re: [LAU] Chord finder, Ricardus Vincente, (Tue Jul 3, 12:41 am)
Re: [LAU] Chord finder, Ralf Mardorf, (Tue Jul 3, 12:57 am)
Re: [LAU] Chord finder, Oon-Ee Ng, (Tue Jul 3, 2:38 am)
Re: [LAU] Chord finder, Ralf Mardorf, (Tue Jul 3, 6:40 am)
Re: [LAU] Chord finder, Rustom Mody, (Thu Jul 12, 3:43 pm)
Re: [LAU] Chord finder, S C Rigler, (Thu Jul 12, 5:15 pm)
Re: [LAU] Chord finder, Funs Seelen, (Thu Jul 12, 4:43 pm)
Re: [LAU] Chord finder, Rustom Mody, (Thu Jul 12, 5:40 pm)
Re: [LAU] Chord finder, Funs Seelen, (Fri Jul 13, 9:19 am)
Re: [LAU] Chord finder, Rustom Mody, (Thu Jul 12, 5:21 pm)
Re: [LAU] OT: Chord finder, Ralf Mardorf, (Tue Jul 17, 7:56 am)
Re: [LAU] OT: Chord finder, Funs Seelen, (Tue Jul 17, 10:53 am)
Re: [LAU] OT: Chord finder, Funs Seelen, (Tue Jul 17, 11:15 am)
Re: [LAU] OT: Chord finder, Ralf Mardorf, (Tue Jul 17, 11:51 am)
Re: [LAU] OT: Chord finder, Ralf Mardorf, (Tue Jul 17, 11:39 am)
Re: [LAU] OT: Chord finder, Funs Seelen, (Tue Jul 17, 12:11 pm)
Re: [LAU] OT: Chord finder, Ralf Mardorf, (Tue Jul 17, 12:22 pm)
Re: [LAU] OT: Chord finder, Funs Seelen, (Tue Jul 17, 12:57 pm)
Re: [LAU] OT: Chord finder, Rustom Mody, (Tue Jul 17, 9:36 am)
Re: [LAU] OT: Chord finder, Ralf Mardorf, (Tue Jul 17, 8:01 am)
Re: [LAU] Chord finder, Funs Seelen, (Fri Jul 13, 9:05 am)
Re: [LAU] Chord finder, Fons Adriaensen, (Fri Jul 13, 9:29 am)
Re: [LAU] Chord finder, Lorenzo Sutton, (Fri Jul 13, 9:41 am)
Re: [LAU] Chord finder, Funs Seelen, (Fri Jul 13, 9:24 am)
Re: [LAU] Chord finder, Raffaele Morelli, (Tue Jul 3, 8:39 am)
Re: [LAU] Chord finder, Kevin Thoma, (Tue Jul 3, 8:47 am)
Re: [LAU] Chord finder, immanuel litzroth, (Tue Jul 3, 9:03 am)
Re: [LAU] Chord finder, Ralf Mardorf, (Tue Jul 3, 7:05 am)
Re: [LAU] Chord finder, Robin Paulson, (Thu Jul 5, 12:16 pm)
Re: [LAU] Chord finder, Bob van der Poel, (Tue Jul 3, 12:48 am)