Mr. Leigh wrote the music for Man of La Mancha, which won five 1966 Tony Awards, including Best Composer and Lyricist (Leigh and Joe Darion) and Best Musical.
“Mitch Leigh was a multi-faceted talent whether he was composing, directing, or producing for Broadway or Madison Avenue,” said Charlotte St. Martin, executive director of the Broadway League, in a statement. “Our thoughts go out to his family, friends, and fans of his work.”
Mr. Leigh was also nominated for a 1985 Tony Award for Best Direction of a Musical for The King and I starring Yul Brynner, and he produced the 1983 Broadway revival of Mame starring Angela Lansbury.