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again about ADO , EDO and ....

🔗Mohajeri Shahin <shahinm@kayson-ir.com>

4/19/2006 7:50:10 PM

Dear all

I and ozan talked before about ADL (arithematic divisions of length ),
he proposed term of ADL:

/tuning/topicId_66074.html#66074

about ADO-EDL,....

/tuning/topicId_63105.html#63105

ozan example :

/tuning/topicId_63105.html#63125

LDO:mine

/tuning/topicId_63105.html#63179

and ozan example :

/tuning/topicId_63105.html#63255

Shaahin Mohaajeri

Tombak Player & Researcher , Composer

www.geocities.com/acousticsoftombak

My tombak musics : www.rhythmweb.com/gdg

My articles in ''Harmonytalk'':

www.harmonytalk.com/archives/000296.html

www.harmonytalk.com/archives/000288.html

My article in DrumDojo:

www.drumdojo.com/world/persia/tonbak_acoustics.htm

🔗Ozan Yarman <ozanyarman@ozanyarman.com>

4/24/2006 4:22:22 PM

I propose the following distinctions:

ADSL= Arithmetic Divisions of String Lenght,
ADPL= Arithmetic Divisions of Pipe Lenght,
EDSL= Equal Divisions of String Lenght,
EDPL= Equal Divisions of Pipe Lenght,

where P above is subject to volume, air pressure, so on...

For the Ney, the basic method is 26-EDPL:

26/26 is the hole for perde Rast
22/26 for perde Dugah
21/26 for perde Kurdi
20/26 for perde Segah
18/26 for perde Chargah
17/26 for perdes Hijaz & Saba
16/26 for perde Neva
13/26 for perde Acem

I still expect some good soul to come forward and help with the calculations of how these ratios end up with approximately these ratios:

0: 1/1 0.000 unison, perfect prime
1: 9/8 203.910 major whole tone
2: 32/27 294.135 Pythagorean minor third
3: 56/45 378.602
4: 4/3 498.045 perfect fourth
5: 10/7 617.488 Euler's tritone
6: 3/2 701.955 perfect fifth
7: 16/9 996.090 Pythagorean minor seventh

We have LDO, ADO, EDO besides. There was also some equal frequency increment thing that I do not recollect exactly.

What should we do with the lot?

Cordially,
Oz.
----- Original Message -----
From: Mohajeri Shahin
To: tuning@yahoogroups.com
Sent: 20 Nisan 2006 Perşembe 5:50
Subject: [tuning] again about ADO , EDO and ....

Dear all

I and ozan talked before about ADL (arithematic divisions of length ), he proposed term of ADL:

/tuning/topicId_66074.html#66074

about ADO-EDL,....

/tuning/topicId_63105.html#63105

ozan example :

/tuning/topicId_63105.html#63125

LDO:mine

/tuning/topicId_63105.html#63179

and ozan example :

/tuning/topicId_63105.html#63255

Shaahin Mohaajeri