If you had to press certain experts in the arts and humanities what the most complex form of performance art is, they would say ballet, hands down.
What art? Can you explain?
Ballet!  The art of dancing in time to music while choreographing each movement to a note in an orchestra.  It is so complex that it has a dictionary of it's own terminology.
Can you tell more about ballet?
Sure!  It's a form of art where dancers attempt to convey the story of a particular piece of music through motion and music.  They aren't able to speak or sing, so they must let their physical movements convey the story.
Wow I love such dance
Ballet is a bit of an acquired taste, however, and they do say a little bit of it goes a long way.  One can only appreciate choreography alone for a limited time, at least in my opinion
I will love my daughter to be a ballet dancer
It is a lovely art form, but be prepared.  Ballet dancing is unfortunately very hard on young girls, so she'll definitely have to be dedicated to learning the crafting and staging.