Who composed “The Art of Fugue,” a work left unfinished at his death?

Johann Sebastian Bach

"The Art of Fugue," one of Johann Sebastian Bach's last works, left unfinished at his death in 1750, is a pinnacle of contrapuntal art, illustrating Bach's supreme mastery of the fugue. Its technical complexity, structural integrity, and the mystery of its unfinished state, particularly the last fugue interrupted with cryptic references to Bach's name, fascinate. This work remains a monument of musical expression, bearing witness to Bach’s unceasing quest for musical exploration until the end of his life.