Big band often different from swing. Bandleader Charlie Barnet's recording of "Cherokee" in 1942 and "The Moose" in 1943 have been called the beginning of the bop era. Woody Herman's first band, nicknamed the First Herd, borrowed from progressive jazz, while the Second Herd emphasized the saxophone section of three tenors and one baritone. In the 1950s, Stan Kenton referred to his band's music as "progressive jazz", "modern", and "new music". He created his band as a vehicle for his compositions. Kenton pushed the boundaries of big bands by combining clashing elements and by hiring arrangers whose ideas about music conflicted. This
Herd immunity Herd immunity Herd immunity (also called herd effect, community immunity, population immunity, or social immunity) is a form of indirect protection from infectious disease that occurs when a large percentage of a population has become immune to an infection, thereby providing a measure of protection for individuals who are not immune. In a population in which a large number of individuals are immune, chains of infection are likely to be disrupted, which stops or slows the spread of disease. The greater the proportion of individuals in a community who are immune, the smaller the probability that those who are not