Well, They usually look for some one who looks about the age of atleast 17. Which is how old i am. But, I look older than i am so I'm ot quite sure how to answer that question. It didn't take me to long to learn all the lines cause i'm pretty good at memorizing things. The songs i(thought) i already knew but, i guess i was wrong because when the vocal director intruscted me he had to correct more than once on the music cause i had been doing it wrong all along.LOL Anyway so yeah. Well hope this helped you and keep on DEFYING GRAVITY!! bye!