Re: multiphonics

Hi Joseph,

I realise your other question about multiphonics prob. is more like the
kind of thing to add to 1.10 wish list.

Certainly thinking over ideas for varying timbre fractally, or using
a cellular automata (see the post for Christopher)

What are multiphonics?

The word was new to me actually. Looked it up and there were
refs to playing two notes at once, e.g. on the trumpet, to make
a chord, but I can't make the connection between that and what
you have in mind.

Also, a question for Paul, what do you have in mind when you
say you believe multiphonics have fractal spectra.

Best,

Robert

--- In tuning@y..., "Robert Walker" <robert_walker@r...> wrote:

/tuning/topicId_18127.html#18127

> Hi Joseph,
>

> What are multiphonics?
>
> The word was new to me actually. Looked it up and there were
> refs to playing two notes at once, e.g. on the trumpet, to make
> a chord, but I can't make the connection between that and what
> you have in mind.
>
> Also, a question for Paul, what do you have in mind when you
> say you believe multiphonics have fractal spectra.
>
>

Hi Robert...

Well, perhaps a wind player like Johnny Reinhard could explain
multiphonics better than I can... but, basically, by varying the lip
and finger pressure on wind instruments you can create CHORDS and
textures. I believe the effect has something to do with the fact
that inharmonic partials are being created through vibrating areas of
wind mass that are not symmetrical but...

Paul, you'd better come to the rescue here.

Let's let Paul explain it, Robert...

But, gee... it would be great if FTS could do some of this!!!

A gradual fractal evolution of timbre! (Although Paul says it must
be "random" to be truly fractal-like....)

Wow... something to think about...

______ ____ ____ _
Joseph Pehrson

Robert wrote,

>The word was new to me actually. Looked it up and there were
>refs to playing two notes at once, e.g. on the trumpet, to make
>a chord, but I can't make the connection between that and what
>you have in mind.

>Also, a question for Paul, what do you have in mind when you
>say you believe multiphonics have fractal spectra.

You're playing several notes at once but you're also getting a very grating
and dissonant "noise" along with them. In fact, there are an infinite number
of frequencies in the spectrum, which has a fractal form, and the loudest
peaks are perceived as the "notes" while the mass of other frequencies is
perceived as the "noise".

> You're playing several notes at once but you're also getting a very grating
> and dissonant "noise" along with them. In fact, there are an infinite number
> of frequencies in the spectrum, which has a fractal form, and the loudest
> peaks are perceived as the "notes" while the mass of other frequencies is
> perceived as the "noise".

This is very interesting. Must find out more.

Robert