Mercer Ellington (1919-1996) was an American composer, arranger, and bandleader, best known as the son of legendary jazz musician Duke Ellington. His genre primarily encompassed jazz, where he contributed significantly as a musician and conductor. Mercer took over his father's orchestra after Duke’s passing in 1974, leading it under the name "The Duke Ellington Orchestra," ensuring the legacy of his father's music continued. Notable works by Mercer include original compositions like "Things Ain't What They Used to Be," as well as arrangements of his father's classic pieces such as "Mood Indigo" and "Take the 'A' Train." He also played a key role in the revival of jazz orchestration, blending traditional big band sounds with contemporary influences. Mercer Ellington's impact on music extends beyond performance; he was instrumental in bringing Duke Ellington's works to new audiences and preserving the Ellington legacy through live performances and recordings. His efforts helped to maintain the relevance of big band jazz in the evolving landscape of American music, influencing future generations of jazz musicians and arrangers.