User:Contribution/Ed9/7

This user page is editable by any wiki editor. As a general rule, most users expect their user space to be edited only by themselves, except for minor edits (e.g. maintenance), undoing obviously harmful edits such as vandalism or disruptive editing, and user talk pages. However, by including this message box, the author of this user page has indicated that this page is open to contributions from other users (e.g. content-related edits).

The equal division of 9/7 (ed9/7) is a tuning obtained by dividing the septimal supermajor third (9/7) in a certain number of equal steps.

ED9/7 tuning systems that accurately represent the intervals 9/8 and 8/7 include: 15ed9/7 (0.87 cent error), 17ed7/5 (0.84 cent error), and 32ed7/5 (0.04 cent error).

15ed9/7, 17ed9/7, and 32ed9/7 are to the division of 9/7 what:

• 13ed4/3, 15ed4/3, and 28ed4/3 are to the division of 4/3
• what 11ed7/5, 13ed7/5, and 24ed7/5 are to the division of 7/5
• what 9ed3/2, 11ed3/2, and 20ed3/2 are to the division of 3/2
• what 7ed5/3, 9ed5/3, and 16ed5/3 are to the division of 5/3
• and what 5edo, 7edo, and 12edo are to the division of 2/1.