9 by 7 in 4

http://micro.soonlabel.com/11-ET/20130704_9by7in4.mp3

9/7 in 4 is a piano composition that takes the just interval 9/7 (a septimal major third ) and divides it by 4 – which results in a tuning very close to 11 notes per octave but with more JI “growl” possible which is heard several times in this recording.

Compare

! E:\cakewalk\scales\9by7in4.scl

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septimal M3 in 4

4

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108.77102

217.54205

326.31307

9/7 (435.1¢)

to 11 edo

109.09091

218.18182

327.27273

436.36364

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