A true ensemble piece with everyone getting in on the action. The kids wander into the Sound Effects room and try out the equipment. Later Jimmie leads the Mouseketeers in a rendition of a von Suppé overture. The first song had lyrics by Cliff Edwards (aka Ukelele Ike/ also the voice of Jiminy Cricket) while the special effects soundtrack for the second number was by Jimmy MacDonald from a 1930's Mickey Mouse cartoon.