Groups of 3 and 4

The next step is to cut between all the remaining B’s and C’s and all the remaining E’s and F’s. The next photo shows the results of these cuts. On the left are the 4 groups of 3 natural keys (C,D,E). In the middle are the 4 groups of 4 natural keys (F,G,A,B). On the right are the highest 2 natural keys (C,D) with the C# between them.