# [r-t] Does a rotation by any other name smell as sweet?

Don Morrison dfm at ringing.org
Sun Oct 19 20:21:08 UTC 2014

```On Sat, Oct 18, 2014 at 11:31 AM, Don Morrison <dfm at ringing.org> wrote:
> Here are two, unnamed differential major methods. From a practical
> ringer's perspective are they the same method, or different methods?
>
> http://ringing.org/blueline1.png
>
> http://ringing.org/blueline2.png

I believe the only three people to have replied to this have replied
that they view them as the same. You learn something new every day:
this unanimity surprises me.

I guess I'm an outlier here, but I would find them different in
practice. To me dodging back and hand feels radically different than
hand and back. And while I've rung few differential methods I would
find a completely different set of cycles to move between at calls a
radically different feel. And as a conductor, I would certainly find
that having to use a completely different composition* would make it
feel a radically different method to me.

Unlike those who have responded, to me the differentials feel
considerably more different than, say, Cambridge and Havant. You have
to look closely to find the difference in the lines of Cambridge and
Havant. If you can ring Cambridge, you can ring Havant with barely a
further thought, while I suspect most ringers, at least blue-line
centric ones, would have to put in at least a little effort to figure
out how to ring one of these differentials having run the other;
though even non-blue-line types might have to think at least a little
bit about the shift from hand to back stroke. And Middleton's works
fine to Havant.

* OK, yes, you _could_ use the "same" composition by shifting calls to
the four-seventh's lead (or something like that; whatever it is, it's
not even the half-lead), but if you wnat to use a normal composition
with calls only at the lead end you'd need a completely different
composition simply to work at all, let alone be true; in fact, you'd
probably use different calls entirely.

--
Don Morrison <dfm at ringing.org>
"I was the Cheshire Cat....But they moved the county boundaries,
so technically speaking I'm now the Unitary Authority of
Warrington Cat."   -- Jasper Fforde, _Lost in a Good Book_

```