[r-t] 40320 Spliced Major (4m)

[Philip Earis]

Me: "I am keen to ring a challenging but achievable extent of major. MBD has now put together a new composition of spliced that has many attractive qualities"

For completeness, here's MBD's 4-method rearrangement of the composition, incorporating Double Bob:


===
40320 4-Spliced Major comp. MBD (no.4)
(10080 each Plain Bob, Double Bob, Helixoid H, Helixoid J)

234567
------
234657 D0s
237546 HHH H-HH HHH HHH HHHs
235674 P1s
234756 HHH H-JJ JJJ JJJ JJJs
234576 P0s
236745 JJJ J-HH HHH HHH HHHs
236475 D0s
235764 HHH H-HH HHH HHH HHHs
237456 P1s
236574 HHH H-JJ JJJ JJJ JJJs
236754 D0s
235647 JJJ J-H-H HHH HHH HHHs
------
235467 P0s
237654 HHH H-JJ JJJ JJJ JJJs
237564 D0s
234675 JJJ J-JJ JJJ JJJ JJJs
234765 P0s
236457 JJJ J-H-H HHH HHH HHHs
------
236547 D0s
237465 HHH H-JJ JJJ JJJ JJJs
237645 P0s
235476 JJJ J-JJ JJJ JJJ JJJs
235746 D0s
234567 JJJ J-H-H HHH HHH HHHs
------

This peal is built from 24 regular blocks, each the length of a Helixoid plain course. 
The P0s and P1s blocks are composed of 15 courses of Plain Bob, and the D0s block from
15 courses of Double Bob, as described below. 

The basic calls are:

- = 16 in Helixoid
s = 1256 in PB and DB, 1456 in Helixoid
x = 123456 in PB and DB

The methods are:

P = lead of Plain Bob
D = lead of Double Bob
H = &-16-58-14-18-14-18-58-38.56.38-14-18-14-1458-36-1458-58-18-58-16.34.16-14-18-58-18-58-14-38-58, +14
J = &-16.58-58-18-58-16.34.16-14-18-58-18-58-14.58-36-14.58-14-18-14-18-58-38.56.38-14-18-14-14.38-58, +14

Note that the Helixoid methods are both Double, and are lead-splices of each other.

The basic 3-course part of PB is:

Ppart = PPP[P]XPP PPPXPSX, XPPPPSP

This gives a "cyclic" part end 12367845, and is repeated four times to make the 15-course touch P0.
P0s is then P0 with the final plain of the last part replaced with a 1256 single.

P1s is the same as P0s, with the bracketed plain replaced by another X=123456 in the first part only.

The D0s block is built up from a very similar 3-course part of DB:

Dpart = PPSXPPX PPSPPPP PXPPPXP

Repeat four times with a single at the very end to make D0s.

Mark B Davies 1 July 2012
===

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