This The Sound of Музыка фото contains
плащ, капоте, and плащ с капюшоном.
There might also be
манто, опера капот, оперный плащ, оперный капюшон, плащ опера, and опера худ.
Here's a video comparing Maria's blue chiffon dress with the Edelweiss Patterns version of "Maria's Gazebo Dress".(The reproduction dress is available at link