[r-t] Compositional help requested
Andrew Johnson
andrew_johnson at uk.ibm.com
Thu Sep 7 13:30:45 UTC 2006
ringing-theory-bounces at bellringers.net wrote on 06/09/2006 23:02:26:
> On 9/6/06, Andrew Johnson <andrew_johnson at uk.ibm.com> wrote:
> > Using Eril I found the following blocks
> >
> > All 5261 changes, 12 567890ETs, 6 657890ETs, 42 67890ETs
> >
> > u = 18,7,7,18,18
> > v = 7,18,7,18,18,18,7,18,7,18,18
> >
> > u = 18,18,7,18,7,18
> > v = 7,18,7,7,18,7,7,18,7,18,18
> >
> > u = 18,7,18,7,18,7
> > v = 7,18,7,7,18,7,7,18,7,18,18
> >
> > u = 7,18,7,18,7,7
> > v = 7,18,7,7,18,7,7,18,7,18,18
>
> I must be confused about how to interpret the above.
>
> Looking at it I would think that it's saying
>
> - from Philip's maximus section call his turning course (x)
> - then call (u) from one of the pairs above
> - then call Philip's turning course (y)
> - then call (v) from one of the pairs above
>
> But (unless I'm doing something wrong) from all four pairs that seems
> to result in the course end 4321658709E, which isn't going to come
> round.
>
> And there's further difficulties as well. For example, I believe the
> (v) block in the first pair is going to run immediately false, unless
> followed by a call at 1, so it doesn't look like it can possibly work
> as the end of a peal in the handstroke position.
>
> What am I missing?
>
> --
> Don Morrison <dfm at mv.com>
I misunderstood Philip's composition a little - I thought that the
Stedman had a normal start. Course x then didn't work, but I thought
I had mistyped it so I let Eril work out the number of plain sixes
in that course. Eril then produced a course which generated
13426578E90T at the row just after half way through a quick six,
so I thought the course ends weren't Stedman course ends but the
row at the start position and that things were different from
normal because this was a special spliced composition.
I then produced the other courses so as to finish with 2143658709ET.
I then realized I needed a special call to bring it round as that
row occurred half way through a quick six.
After Phil pointed out that it didn't need a special call I went
back and found my problem.
Instead of x I had used the course
w = 1,5,7,s16,19 (22 sixes)
7 18
w 34126578E90T
- 32416578E90T
- 25416378E90T
- - 51346278E90T
- 54136278E90T
y 5413628709ET
- - 4321658709ET
- - 3152648709ET
- 3215648709ET
- 3521648709ET
- - 5142638709ET
- - 1234658709ET
- (1423658709ET)
412638507E9T
4213658709ET
241638507E9T
2143658709ET->bring round from here
124638507E9T
1423658709ET
Bringing it round with a messy extra call isn't ideal, so here's
another solution:
5131 Spliced Cinques / Maximus
1234567890ET
2*Slink 14523ET90786 |
2*Bristol 167890ET2345 | A
-----------------------------------
9A 190ET2345678
-----------------------------------
M W H
SSBB.BBB. - - 1452367890ET
(Bristol) - s 132456
-----------------------------------
(Cambridge) s s s 154263
- - 132465
- - 164523
-----------------------------------
7 18
(Stedman) w 34126578E90T
- 32416578E90T
- 31246578E90T
y 3124658709ET
- - 1452638709ET
- - 4235618709ET
- s 2531648709ET
s - 5123648709ET
- 5312648709ET
- s 3214658709ET
s - 2431658709ET
- 2143658709ET
w=1,5,7,s16,19
y=2,s13,s15
Normal Stedman start
Check this yourself before ringing it!
Andrew Johnson
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