This is a slightly different version of tutorial 5. In this case we take randomly a decomposition of the 'good period' n into the five numbers that lead to the construction of the rhythmic structures R and S. Note that in the case of n=72, only two decompositions are obtained. Both have the product n1n2 equal to 6, which means that the resulting canon will be in 6 voices (or 12, if you consider the dual one, as shown in the previous tutorial).