The WSM Grand Masters by Rhythm Clocks features Westminster Chimes or Popular Melodies. Flip a switch on the back of the clock to select either : 4 x 4 Westminster (Plays Westminster every 15 minutes Westminster (Plays Westminster on the hour) 6 Popular Melodies (One every hour on the hour) 3 Christmas Melodies (One every hour on the hour) If you choose the Melodies option, the songs played in rotation are : La Primavera (Spring), Morning Mood – Peer Gynt, Traumerei, Voice of Spring, Le Cygne (The Swan), Tales from the Vienna Woods, or switch over to the Christmas Mode and hear : Silent Night, Joy to the World, We Wish You a Merry Christmas. Choose to hear the WSM Grand Masters : 24 Hours per day Daytime only (Off 11 : 00 PM to 5 : 45 AM) Off – no sound Rhythm’s WSM Grand Masters also features : Real Wooden Case Swinging Pendulum Volume Control Demonstration Button Dimensions are 22.4″ Diameter.