Example 23. Annotated reproduction of the impact of non-isochrony on consonance during hypothetical metric layer reduction of a “Sunun” dundun part from “Figure 3” of Polak (2020). Here, the original figure is supplemented by identifying sounded notes according to their pulsation identity (labels given in green). Examples of notes that are categorically altered through the process of metric level reduction in the original analysis are identified by enclosure in red ovals. From the perspective of maturation, these notes would be omitted altogether in the associated pulsation cycles transformed from quaternary to binary within Mode 2, as indicated.