Page 1 of 1

13 EDO

Posted: Sat Oct 15, 2016 2:52 pm
How do you notate 13 EDO? It's weird because father is an 8 note scale while glacial being a 7 note scale is not built from a chain of fifths.

Re: 13 EDO

Posted: Sat Oct 15, 2016 6:10 pm
In the Xenharmonikon article we recommend notating it as every 3rd note of 39-edo. But Cryptic Ruse has just made a reasonable case for notating it as every second note of 26-edo.
```26-edo: (A:B, C:D, D:E, F:G, G:A = 4) (B:C, E:F = 3) (# = 1)																		:26-edo
A	A	A																						A	A	A
B	B	B	B	B
C	C	C	C	C
D	D	D	D	D
E	E	E	E	E
F	F	F	F	F
G	G	G	G	G
[Use the horizontal scroll bar at the bottom of this post, to see the rest of 26-edo. -->]

13-edo: (A:B, C:D, D:E, F:G, G:A = 2) (B:C, E:F = 1.5) (# = 0.5)
A	A
B	B
C	C	C
D	D	D
E	E	E
F	F
G	G
Alternatively

13-edo: (A:B, C:D, D:E, F:G, G:A = 2) (B:C, E:F = 1.5) (# = 0.5)
A	A											A
B	B	B
C	C
D	D
E	E
F	F	F
G	G	G```

Re: 13 EDO

Posted: Sat Oct 15, 2016 11:37 pm
Dave Keenan wrote:In the Xenharmonikon article we recommend notating it as every 3rd note of 39-edo. But Cryptic Ruse has just made a reasonable case for notating it as every second note of 26-edo.
```26-edo: (A:B, C:D, D:E, F:G, G:A = 4) (B:C, E:F = 3) (# = 1)																		:26-edo
A	A	A																						A	A	A
B	B	B	B	B
C	C	C	C	C
D	D	D	D	D
E	E	E	E	E
F	F	F	F	F
G	G	G	G	G
[Use the horizontal scroll bar at the bottom of this post, to see the rest of 26-edo. -->]

13-edo: (A:B, C:D, D:E, F:G, G:A = 2) (B:C, E:F = 1.5) (# = 0.5)
A	A
B	B
C	C	C
D	D	D
E	E	E
F	F
G	G
Alternatively

13-edo: (A:B, C:D, D:E, F:G, G:A = 2) (B:C, E:F = 1.5) (# = 0.5)
A	A											A
B	B	B
C	C
D	D
E	E
F	F	F
G	G	G```
Ah ok that makes sense just like 11 is every other note of 22.

Re: 13 EDO

Posted: Sun Oct 16, 2016 11:30 am
Every other note of 26-EDO is also the notation Easley Blackwood used in his Twelve Microtonal Etudes.