European Follow-On

A little while back I posted a link to an amusing item in 10 EDO. It was
connected with decimilisation. Now that there will be 25 members of the EU
as from Saturday, I thought that we should try to write a piece in 25EDO.

At least we'd all be MakingMicroMusic

Mark

--- In MakeMicroMusic@yahoogroups.com, "M Gould" <mark.gould@a...> wrote:
> A little while back I posted a link to an amusing item in 10 EDO. It was
> connected with decimilisation. Now that there will be 25 members of
the EU
> as from Saturday, I thought that we should try to write a piece in
25EDO.
>
> At least we'd all be MakingMicroMusic

Ah ha! But the first question I'd ask is a theoretical one--are you
planning on treating any interval as a fifth, and if so, is it to be
3/5 of an octave or 14/25 of an octave? The latter choice may involve
you in the hexidecimal temperament, with 36/35 and 135/128 as commas;
the former choice has 256/243 in place of 135/128, and may involve you
with the blackwood temperament, with commas 28/27 and 49/48, and
instead of 16 you might be comparing to 15. For this, you might want
to flatten octaves; for the other, sharpen them.

The point being that theory is not irrelevant to this project, or to
music making in general.

--- In MakeMicroMusic@yahoogroups.com, "M Gould" <mark.gould@a...>
wrote:
> A little while back I posted a link to an amusing item in 10 EDO.
> It was connected with decimilisation. Now that there will be 25
> members of the EU as from Saturday, I thought that we should try
> to write a piece in 25EDO.
>

He he - then talk about the meaning of consonance and dissonance
will get a political touch and eventually become dangerous...

But looking at that tuning, I see it has two interesting properties.
It contains 5TET, and it appears to have quite nice thirds and
harmonic sevenths, which makes it a candidate for some kind of 7-
limit tetrad tonality, as in Paul's article on 22TET. Has anybody
done something like that?

And, just BTW, speaking of national microtonal music: I am currently
working on a piece for virtual alphorns. The alphorn is a famous
swiss folk instrument, which can only play tones of a natural
overtone series, and that's the tuning I am using (it's not
_exactly_ folk, though...). The privilege of virtual alphorns is, of
course, the possibility to modulate to other overtone series!
--
Hans Straub
http://home.datacomm.ch/straub

--- In MakeMicroMusic@yahoogroups.com, "hstraub64" <hstraub64@t...>
wrote:
> --- In MakeMicroMusic@yahoogroups.com, "M Gould" <mark.gould@a...>
> wrote:
> > A little while back I posted a link to an amusing item in 10 EDO.
> > It was connected with decimilisation. Now that there will be 25
> > members of the EU as from Saturday, I thought that we should try
> > to write a piece in 25EDO.
> >
>
> He he - then talk about the meaning of consonance and dissonance
> will get a political touch and eventually become dangerous...
>
> But looking at that tuning, I see it has two interesting
properties.
> It contains 5TET, and it appears to have quite nice thirds and
> harmonic sevenths, which makes it a candidate for some kind of 7-
> limit tetrad tonality, as in Paul's article on 22TET.

I replied on the tuning list. Unlike Paul Rapoport, I haven't made
music in 25-equal.