Dave Brubeck was an influential American jazz pianist and composer, born on December 6, 1920, in Concord, California. He is best known for his innovative approach to rhythm and time signatures, particularly in his famous piece "Take Five," which features a 5/4 time signature. Brubeck's work helped popularize jazz music in the 1950s and 1960s, making it accessible to a wider audience. Throughout his career, Brubeck formed the "Dave Brubeck Quartet," which became one of the most successful jazz groups of its time. He collaborated with various musicians and composers, blending elements of classical music with jazz. Brubeck's contributions to music earned him numerous awards, and he continued to perform and compose until his passing on December 5, 2012.