English cadence is characterized by voice leading, the linear progression of individual voices or parts that interact to create harmonies.
In beat 3 of the example below, the tenor's B sounds concurrently with the soprano's B. This voice leading entails the seventh degree's dual functionality, or its capacity for opposing voice-leading tendencies. Voice leading (or part writing) is the linear progression of individual melodic lines (voices or parts) and their interaction with one another to create harmonies, typically in accordance with the principles of common-practice harmony and counterpoint. 
