back to list

Seven to pi MOS

🔗Robert Walker <robertwalker@ntlworld.com>

7/6/2002 9:24:34 PM

Hi Margo,

Just had the idea of doing a 7/4 MOS
and made an 11 note MOS

After trying several rotations, I liked this one

2^17/7^6 2^3/7 2^20/7^7 2^6/7^2 2^23/7^8 2^9/7^3 2^26/7^9 2^12/7^4 2^29/7^10 2^15/7^5 2/1

=

187.04 231.17 418.22 462.35 649.39 693.52 880.57 924.7 1111.7 1155.9 1200.0

which yields this diatonic scale:

187.04 418.22 462.35 693.52 880.57 1111.7 1200.0
with the mode
0 1 3 4 5 7 9 11

It has no C# or F#, and has a B half sharp which one can use
as a narrow leading tone if one wants.

The major third 418.2187 is close to 14/11 at 417.51
and is very close to 4/pi at 418.2046.

Anyway it's a lovely melodic scale and I've done a short improvisation
in it on the FM7, maybe one for my cd?? On its Electric harp voice.

For those who can listen on line:

I've uploaded it to the australian mp3 site yesterday evening so
it should be up there soon as they turn things around fast
there - I'll post to MMM when its up.

The two step sizes are L = 2^17/7^6 and S = 7^5/2^14

cents values: 187.04 44.13

Scale pattern of large and small step sizes:
L S L S L S L S S

L S = 8/7.

Robert