User:2^67-1/Nonoctave stuff: Difference between revisions
mNo edit summary |
mNo edit summary |
||
| Line 4: | Line 4: | ||
Anyway, that's all I want to say for now. | Anyway, that's all I want to say for now. | ||
== Expanded subgroups == | |||
Define the notation (x).y where y is a subgroup and x, the equivalence interval, is defined as an interval in y where two notes at that distance are taken to be equivalent. This is called an '''expanded subgroup'''. | |||
There are an infinite number of expanded subgroups for any given y. | |||