Benchmarks in the author's song

There are judgments about the significant difficulties to give a rigorous definition of author's (bard) song as a cultural phenomenon in General and its individual characteristics. The article analyzes the causes of the current situation and proposes a method to solve this problem in relation of author's song. It is based on the inclusion in research process scientific benchmarks that are evidence-based rigor to obtain acceptable answers to a number of topical issues.