The famous scientist and historian of science Price puts forward that if K represents the number of people involved in a certain professional field, then the square root of this number is roughly equal to the number of top-ranked people who have contributed half of the field.
According to the above definition, an organization counted the repertoire of concerts held publicly around the world in the past year and found that all repertoires were completed by about 250 composers, and about half of the repertoire came from 16 composers is in line with Price's point of view.