Figure 3. In the new notational system, two K-nets are related by <T_x> only if the first is strongly isographic to a K-net
whose pitch-classes are T_x-related to those of the second. Here, {C, E} + {G} is strongly isographic to {C, E} + {G},
whose pitch-classes are T₇-related to those of {G, B} + {D}. It is also strongly isographic to {G, B} + {D},
whose pitch-classes are T₁-related to those of {G, B} + {D}. Hence {C, E} + {G} relates to {G, B} + {D} by <T₁ or T₇>.