From: "M. A. Baker" <mabaker@tiac.net>
Newsgroups: rec.folk-dancing
Subject: Computer generated choreography
Date: Fri, 29 Jan 1999 22:45:32 -0500
Message-ID: <36B2805C.52C0@tiac.net>

mcl2@vms.cis.pitt.edu wrote:

> Is this the first time a computer generated contra has been successfully
> called at a real dance?

My undergraduate thesis (MIT, 1976) was a computer program that
generated random MWSD sequences.  Each sequence started from a squared
set, contained a series of moves, and resolved to an allemande left, or
directly to a right and left grand.  The program attempted to take into
account proper use of hands, body flow, and avoid the use of overflow. 
In addition, the probabilities were adjusted to reduce getting into long
series of, e.g. head men 1/4 right, side women u turn back, side men 1/4
left, heads partner trade, heads partner trade.

While I was not a caller at the time, I did subject many of me fellow
dancers through various walkthrus of the (never ending) output of this
program.  A s I remember, a few sequences were called at actual dances. 
All of the output was legal, most flowed, but some of the combinations
were unusual enough that dancers found the material too hard.

The issues of flow, timing, and what dancers will find diffucult are
very different between contra and MW squares.  A lot more could be said
here.

There are several computer programs which assist MWSD callers in writing
new choreography.  Most of these are checker pushing programs which know
what calls are legal from each position, but have no knowledge of proper
flow or use of hands.  Some will show you the dancers as they move
through the calls.  Several of these programs can be asked to pick the
next call at random from a selection of legal calls.  One of them will
use the text to speech feature of the Mac and "talk" random sequences.

Clark Baker, Belmont, MA (using my wife's e-mail)
cmb@nexen.com
