Life is made up of moments, and so is Arthur Laurents’ 1959 Broadway musical, “Gypsy,” with lyrics by Stephen Sondheim and music by Jule Styne. Regarded as the great American musical by many critics, “Gypsy” is based on the memoirs of the renowned, high-class stripper named Gypsy Rose Lee. It recounts the challenges of growing up Louise in the shadow of her sister, billed on the vaudeville circuit as Dainty June. June is blond and petite (and later became actress June Havoc) and considered the more talented daughter by Mama Rose, who relentlessly trained them to become the stars she knew they were.