"Mood Indigo" is a jazz composition by Duke Ellington, first recorded in 1930. The piece is known for its rich harmonies and unique blend of instruments, creating a moody and atmospheric sound. It features a distinctive melody that has made it a classic in the jazz repertoire. The song has been performed by many artists and has inspired various interpretations over the years. Its influence extends beyond jazz, appearing in films and other musical genres. The title reflects a sense of melancholy, capturing the essence of the emotions conveyed through the music.