Three of The Sound of Music's musical von Trapp family leave that Broadway revival this week. Natalie Hall, who played Louisa, gave her last performance Aug. 2. Nora Blackall will take over the role Aug. 4. Both Matthew Ballinger and Ryan Hopkins, who play Kurt and Friedrich, respectively, will leave after the Aug. 6 performance. Ballinger will be replaced by Marshall Pialet, while Lou Taylor Pucci will assume the role of Friedrich.

The role of Elsa Schraeder in Broadway's The Sound of Music is being filled by Kay McClelland for an eight-week run which began July 28. She replaces Jan Maxwell, who will then return to the role Sept. 23.

The Broadway revival of The Sound Of Music, starring Rebecca Luker and Michael Siberry, opened March 12 at the Martin Beck Theatre.

The 1959 Rodgers and Hammerstein musical tells the story of a singing would-be nun who transforms the lives of an Austrian widower submarine captain and his seven children through the power of goodness and song. She abandons the convent life to become the captain's wife -- just as the Nazi anschluss makes him a prime target for drafting into the German navy. Can they save their principles, their family and the new-found ability as a singing group? The answer is played out to the tune of R&H standards include "Do Re Mi," "My Favorite Things," "Climb Ev'ry Mountain," "Edelweiss" and the title song.

Mother Abbess is played by Patti Cohenour, who was the Phantom's Christine in 1988 -- a year before Luker stepped into the same role. Also in the cast are Fred Applegate (Max), Patricia Conolly (Frau Schmidt), Sara Zelle (Liesl), Dashiell Eaves (Rolf), John Curless (Franz), Tracy Alison Walsh (Brigitta), Andrea Bowen (Marta), Ashley Rose Orr (Gretl) and Jeanne Lehman.