22ET scale Decatonics can be seen to be two pentatonics, as PE states. I drew up a 3d diagram depicting one of these: http://www.argonet.co.uk/users/mark.gould/images/C22_Decatonic.jpg I think that the diagram can explain the modulatory closeness of the T2 and T11 transpositons. Mark Gould ------------------------ Yahoo! Groups Sponsor ---------------------~--> Free $5 Love Reading Risk Free! http://us.click.yahoo.com/3PCXaC/PfREAA/Ey.GAA/wHYolB/TM ---------------------------------------------------------------------~-> To unsubscribe from this group, send an email to: tuning-math-unsubscribe@xxxxxxxxxxxxxxx Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ ____________________________________________________________ To learn how to configure this list via e-mail (subscribe, unsubscribe, etc.), send a message to listar@xxxxxxxxxxxxx with the subject line "info tuning-math". Or visit the website: < //www.freelists.org/list/tuning-math > .