"Covering the time period from 1955 to 1978, more than 700 artists and 30 styles of music are mapped in currents flowing from left-to-right. For each performer, the length of time that he/she remained a major hit maker is provided. The overlapping streams allow you to compare the longevity and influence of multiple artists for the same time period. The birth and genealogy of each stylistic category is presented, along with an estimation of its share of total record sales."
