When I think of the quintessential showtune, Jule Styne is one of the composers that comes to mind. There is a brassy boldness that instantly begins to fill the ears and swells the heart when recalling melodies such as "Everything's Coming Up Roses," "Don't Rain on My Parade" and "Diamonds Are a Girl's Best Friend." And yet, Styne could be subtle, emotional, and break your heart with gentler tunes such as "…