I think this is real. You can see the flute players move their fingers in exact syncronization with the music. And you may not know it, but the horn players don't need to always move their finders as they control the tones with their lips. If not real these girls are really feeling the music and playing along with a previously recorded track. I just wish we had more closes ups of the musicians and a better views of the conductor!
They are not really playing just look at their throats and fingers
this is what happens when you have so much people on one side of the world that you dont know what to do with them
this is what happens when you have so much people on one side of the world that you dont know what to do with them