# MM STD tutorial

Right, here is a reminder from part 1;

1. we juggle a 3 ball cascade with a long dwell time
2. we juggle to music with an exchange on every beat
3. the exchanges always alternate hands

Our final simplification that we're going to make is this. All throws and catches basically happen either with the arms uncrossed, with the arms crossed right over left, or with the arms crossed left over right. We're not going to be too concerned with any more precision about the places of throws and catches than this. Of course, in practice there is a much finer degree of control shown by jugglers than this, but we're going to pretend for now that the only thing that matters is the "crossedness" of the arms.

Now, let's juggle our ordinary three ball cascade and think about the right hand for a minute. Doing an ordinary inside throw, the right hand moves in a clockwise circle (from the juggler's point of view). It comes up on the inside of Juggle Space for the throw and goes down on the outside of Juggle Space for the catch. This is what we'll call an "Inside Exchange". In fact, whenever the right hand does a clockwise circle for the throw/catch exchange we'll call that an "Inside Exchange", even if it's not in the usual place.

The same is true for the left hand, only for the left hand the "Inside Exchange" is characterised by an anti-clockwise circle.

The "Inside Exchange" is when you do a clockwise throw/catch circle with the right hand, or an anti-clockwise throw/catch circle with the left hand.

 Warning: This definition may seem weird if the exchange happens on the "wrong" side of the body!

Let's do an "Inside Exchange" with the right hand, but let's do it on the left side of the body, with the arms crossed. The right hand still goes in a clockwise circle, because that's exactly what it means to say that you're doing an "Inside Exchange". Now, however, the hand is coming up on the outside, so you will notice that the path the ball will take will be the same as if it had been an outside throw with the left hand. Ignore this. We're not concerned for the moment about the actual path of the ball. We're only interested in which direction the hand goes round.

Of course, if the hand goes the other way round then we're going to call it an "Outside Exchange". This only seems fair and reasonable.

## Summary

• We're only going to worry about whether or not the arms are crossed, and if so, which is on top.

• Right hand goes clockwise -> "Inside Exchange"
• Left hand goes clockwise -> "Outside Exchange"

• Right hand goes anti-clockwise -> "Outside Exchange"
• Left hand goes anti-clockwise -> "Inside Exchange"

On to MM STD 03