Choreography
This is mostly novelty material I've written for fun; you will be hard-pressed to find anything resembling the traditional definition of "choreography". (I have also written more than 1,000 sequences of real choreography; I don't want to put them all on my website, but feel free to let me know if you want to do some data analysis on them or something.)
a sequence that always resolves
This is a "universal sequence": it can start in any symmetric 2x4, and always ends in a "circle left n/8" resolve. (It can be pasted directly into sd.)
It even has some bonus properties: every call has someone moving (i.e. no "leads trade" with no leaders, or "funny X" where nobody gets it), there's no use of absolute directions ("headliners", "face the music"), and everything is kept at 90° angles (getting to lines is easier with "1/8 in").
1/4 in
1/4 stable swap around
crazy circulate
echo ends 1/4 in
boys trade
cast off 1/4
leads u turn back
ends start pass the ocean
slide thru
bend the line
heads trade
melded as couples step thru
#2 girl run
#4 boy run
ends 1/4 in
funny circulate
ends 1/4 in
trailers trade
stable #2 girl run
centers slide thru
leads trade
centers pass thru
press ahead
centers slide thru
#1 girl run
#3 boy run
ends 1/4 in
funny circulate
ends 1/4 in
trailers trade
stable #1 girl run
centers slide thru
leads trade
bring us together
once removed #1 couple run
once removed #2 couple run
leads u turn back
Here's some rough intuition for how it works. The first block turns an arbitrary 2x4 into facing lines. The second block ensures the facing lines are made of normal couples. The third block gets a trade by of normal couples with heads as ends and sides as centers. The fourth block pairs the sides with their partners. The fifth block does the same for the heads. Finally, the last block ensures the couples are in sequence (at which point "circle home" can be called).
illegal sequences
Here are a few sequences with totally illegal calls that hopefully are intuitive enough anyway. (The starred call is the one in question.)
Note: I wrote these when I was much worse at writing sequences, and I want to improve them some day. They still serve to show off the gimmick, though.
[plus]
sides pass the ocean
sides left swing thru, heads half sashay
extend
hinge
scoot back and roll
leads u turn back
1/2 scoot back
*exchange the gears
to a right and left grand
[advanced]
heads star thru
boys run
triple scoot and roll
centers counter rotate
*outroll circulate
finish chain down the line
half tag
hinge
crossover circulate
allemande left (to home)