The movements that make the music
This is an absolutely fascinating animation from the New York Times of the connection between a conductor’s gestures, the responses of the musicians and the sounds that are created. Alan Gilbert, the music director of the New York Philharmonic talks it through: http://www.nytimes.com/interactive/2012/04/06/arts/music/the-connection-between-gesture-and-music.html?ref=classicalmusic#