Hal Leonard Corporation is a leading music publisher and distributor, known for its extensive catalog of sheet music and instructional materials. Founded in 1947 by Harold "Hal" Leonard, the company has grown to become one of the largest music publishers in the world, offering a wide range of genres, including classical, jazz, rock, and pop. In addition to sheet music, Hal Leonard produces books, play-along tracks, and digital products for musicians of all skill levels. The company collaborates with various artists and publishers, ensuring that musicians have access to high-quality resources for learning and performance.