André George Previn was a German-American pianist, composer, and conductor. His career had three major genres: Hollywood films, jazz, and classical music. In each he achieved success, and the latter two were part of his life until the end. In movies, he arranged and composed music. In jazz, he was a celebrated trio pianist, a piano-accompanist to singers of standards, and pianist-interpreter of songs from the "Great American Songbook". In classical music, he also performed as a pianist but gained television fame as a conductor, and during his last thirty years created his legacy as a composer of art music.

Richard Morton Sherman is an American songwriter who specialized in musical films with his brother Robert B. Sherman. According to the official Walt Disney Company website and independent fact checkers, "the Sherman Brothers were responsible for more motion picture musical song scores than any other songwriting team in film history."