Lesson 15 for MM_STD

So, the time has come to review what we have seen, and to re-think some of our ideas. In particular, it's time to have a look at what the notation _can't_ do.

Let's look for a moment at four ball Mills Mess. There is a common mistake made in this pattern. When throwing the underarm throw, the ball should follow the previous throw, arcing up from the side and following more-or-less the same path through the air. However, quite a lot of people throw that underarm throw from a somewhat narrower position, and as a result it appears "inside" the previous ball. As we said above, this is a common mistake, and it's one that the notation as described does not help us with.

Similarly, as mentioned in Lesson 13 with regards the weave, the notation doesn't tell us that the held ball should weave between the others. It could equally well be waved about entirely above the other balls.

For a more complete description of a pattern, one can turn to the extension of SiteSwap used in JuggleKrazy. In this notation the spatial positions of each throw and catch can be specified, as well as any shifts in the timing. Because of this, the notation can easily be used to differentiate between the two versions of 4-ball Mills Mess, or the two versions of the weave described above. For more details on this notation please feel free either to ask us directly, or to download the free, interactive demonstration version of JuggleKrazy, which comes with full on-line help on the notation (and just about everything else!)

Still, the notation we've been working on here, despite its short-comings, is a very powerful tool, both for describing patterns, and for working out new ones.

However, there are are few minor quibbles that some people have, and which are now worth asking you all about.

  1. The name
  ===========
       Although originally used to analyse Mills Mess,
     there is a feeling that the name shouldn't really
     contain the term "Mills Mess".  Also, calling it
     the State Transition Diagram doesn't really help
     its image with the general juggling community.
     Suggestions for a new name, anyone?
     Suggestions include

         MDHMD - Mike Day's Hand Movement Diagram
         MDHMN - Mike Day's Hand Movement Notation

     for the diagram and the text form respectively.


  2. "Inside" and "Outside" exchanges
  ===================================
       A few of you have had trouble with the terms
     "Inside" and "Outside".  Certainly the terms are
     considered obvious by some, while others think
     they are completely unnatural.  Suggestions are
     welcome for alternative names for these.  Don't
     forget, though, that new suggestions should be
     accompanied by corresponding suggestions for the
     symbols on the diagram !!


  3. Diagram symbols
  ==================
       Even if we _do_ keep the terms  "inside"  and
     "outside",  the "+" and "o" used on the diagram
     are not universally acclaimed.  Suggestions for
     alternative symbols are welcome.
Any and all suggestions welcome. Also, if anyone has any comments on the lessons themselves we'd be very grateful. Grammar, punctuation, detail, overview, motivation, all are fit subjects for comment.

Please, feedback requested !!

C.D.Wright


Back to Lesson 14

The contents of this document are Copyright (C) Solipsys Ltd, 1996, but you may reproduce and redistribute them freely provided that you make no changes, no charges, and that this copyright notice remains attached.

Dr C.D.Wright