William James Basie, known professionally as Count Basie, was an American pianist, bandleader, and composer born on August 21, 1904, in Red Bank, New Jersey. After studying with stride piano masters James P. Johnson and Fats Waller, Basie settled in Kansas City in the late 1920s, where he absorbed the blues-rooted, riff-driven style that would define his orchestra's sound for the next five decades. His compositional output centered on swing-era instrumentals built from simple, infectious riffs and head arrangements. "One O'Clock Jump," featured on AllSolos, became his signature piece and one of the most recognized compositions in big band jazz. Other well-known originals include "Jumpin' at the Woodside," "Lester Leaps In," "Taxi War Dance," and "The Kid from Red Bank." Basie's bands served as proving grounds for major soloists including Lester Young, Buck Clayton, Sweets Edison, and Frank Foster, as well as vocalists Billie Holiday and Jimmy Rushing. Arrangers Neal Hefti, Ernie Wilkins, and Buster Harding shaped the orchestra's later recordings into tightly polished showcases of ensemble precision. Over a career spanning more than fifty years and some four hundred eighty albums, Basie established a rhythmic and compositional vocabulary that remains central to the big band tradition. He died on April 26, 1984, in Hollywood, Florida.