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#1043930 - 11/15/04 08:10 PM Sigma Step
DarenT Offline
Full Member

Registered: 10/18/04
Posts: 96
Loc: Vancouver, BC
Please tell me what a "Sigma" step is, relative to the whole and half steps when building a scale. Thank you.
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#1043931 - 11/15/04 08:45 PM Re: Sigma Step
DarenT Offline
Full Member

Registered: 10/18/04
Posts: 96
Loc: Vancouver, BC
Following up on my preceding post questioning what a Sigma Step is I forgot I should verify if I have the right steps for forming a scale!

MAJOR SCALE
C D E F G A B C
W W H W W W H

MINOR SCALE
A B C D E F G A
W H W W H W W

Thank you.
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#1043932 - 11/15/04 10:19 PM Re: Sigma Step
DuCamp Offline
Full Member

Registered: 11/02/04
Posts: 263
Loc: Mexico City
That's how you call to the step connecting two tetrachords.
And yup, your structures are correct.
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#1043933 - 11/16/04 05:21 PM Re: Sigma Step
DarenT Offline
Full Member

Registered: 10/18/04
Posts: 96
Loc: Vancouver, BC
Thank you. Can you tell me relative to the Major Scale I posted above which step is it, or is it an additional step?

Thank you.
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#1043934 - 11/16/04 06:00 PM Re: Sigma Step
Bob Muir Offline
2000 Post Club Member

Registered: 11/01/03
Posts: 2653
Loc: Lakewood, WA, USA
The C-major scale that you posted above is composed of two tetrachords. (C-D-E-F & G-A-B-C). So if the "Sigma" step is the step between them, then it would be F-G.

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#1043935 - 11/16/04 09:44 PM Re: Sigma Step
DuCamp Offline
Full Member

Registered: 11/02/04
Posts: 263
Loc: Mexico City
That's it, Bob. \:\)
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Visit my architecture studio website (it's new and soon to be available in english)
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