Billy Strayhorn was an American composer, pianist, and arranger, best known for his work with the jazz orchestra led by Duke Ellington. Born on November 29, 1915, in Pittsburgh, Pennsylvania, Strayhorn played a crucial role in shaping the sound of Ellington's band, contributing many classic compositions. Strayhorn's most famous works include the iconic piece "Take the 'A' Train" and the poignant ballad "Lush Life". His innovative arrangements and unique musical style helped elevate jazz music during the mid-20th century. Strayhorn's contributions to the genre continue to be celebrated and studied by musicians and enthusiasts alike.