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A new music in honour of john chalmers is uploaded

🔗Mohajeri Shahin <shahinm@...>

1/1/2007 4:33:51 AM

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>Hi all
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>Happy new year!
For john chalmers in http://www.esnips.com/web/acousticsoftombak-Musicfolder
>This piece is composed in honour of Dr.john chalmers </www.dismec.unibo.it/musichegreci/intersoc/usa/chalmers.htm> , for his efforts mainly in science of tuning and as a gift for new year.It is not a long time , being acquainted with this guru , but i found a good teacher and better to say , a good freind.
>This piece is composed Basically in 5-AID(4/3) <http://240edo.googlepages.com/arithmeticirrationaldivisions(aid)> with a1=66.406 cent .so,considering 2 equal interval with size of (4/3)^(1/2) , Finally we can see this 5-tone tetrachordal structure:
>0.00000
>66.40600
>149.41350
>249.02250
>365.23300
>4/3
>Then adding a1 to 4/3 , inserting a new interval as 3/2 and extending to 12 note per ocatve lead us to this 12-tone scale with two equal tetrachords:
>0: 1/1
>1: 66.406
>2: 149.414
>3: 249.023
>4: 365.233
>5: 4/3
>6: 564.451
>7: 3/2
>8: 768.361
>9: 851.369
>10: 950.978
>11: 1067.188
>12: 2/1
>This music is composed in a mode with this degrees :
>0 2 3 5 7 9 10 12
>We have 3 point of nonconformity between two tetrachords.
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>Shaahin Mohajeri
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>Tombak Player & Researcher , Microtonal Composer
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>My web siteوب سايت شاهين مهاجري <http://240edo.googlepages.com/>
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>My farsi page in Harmonytalk صفحه اختصاصي در هارموني تاك <http://www.harmonytalk.com/mohajeri>
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>Shaahin Mohajeri in Wikipedia شاهين مهاجري دردائره المعارف ويكي پديا <http://en.wikipedia.org/wiki/Shaahin_mohajeri>
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