2 juggler half-synchronous siteswap
This is a form of siteswap for two jugglers and describes a lot of "classical" patterns. 4-count, 3-count,… but also 7-club 2-count.
Basically every pattern in which both of two jugglers do e.g. straight single passes is at least half-synchronous. For asynchronous patterns, one person throws straight, the other diagonal for the same type of throw.
4-count is a half-synchronous siteswap, that can be written like this:
Remark: this should at least give one example using a Siteswap-diagram (also called ladder diagram)
A: 3p 3 3 3 3p 3 3 3 B: 3p 3 3 3 3p 3 3 3
I will additionally mark the beat 3 beats after the pass,in which the passes arrive with a "*":
R L R L R L R L A: 3p 3 3 3* 3p 3 3 3* B: 3p 3 3 3* 3p 3 3 3*
Now we can again "swap sites" between the pass of A and its preceding self and we get:
R L R L R L R L A: 3p 3 3 4p* 2 3 3 3* B: 3p 3 3 3* 3p 3 3 3*
the 4p arrives at the same time as the 3p would and the pattern of B continues as if nothing had changed.
We can change the same pattern further in the throws that stay with A, e.g.:
R L R L R L R L A: 3p 3 3 4p* 4 1 3 3* B: 3p 3 3 3* 3p 3 3 3*
There is one obvious exception - A cannot do a throw that would arrive at the time when B's pass arrives.