Other editions include music by Grainger for Bardic Edition, the new vocal score of I Puritani for the New Bellini Edition, and, with Robert Threlfall, the 2-piano score of the final version of Rakhmaninov's 4th Piano Concerto for Boosey & Hawkes.

Leslie Howard's publications include the articles on Liszt and Rakhmaninov for the Viking Opera Guide; a chapter in David Dubal's Horowitz symposium; innumerable annotations to recordings and concert programmes; two books with Michael Short: Ferenc Liszt - A list of his musical works [Rugginenti, 2002]; Ferenc Liszt - A thematic catalogue [Pendragon, 2002]; and a book in progress: The Music of Liszt [Yale UP].