Already a customer? Click here to login. Audition Pre-Registration Required for the 2023 National Summer Intensive Audition (NSIA) at Texas Ballet Theater - Fort Worth School. Please complete the below form and payment information. Upon successful completion and payment, you will receive an email with further registration instructions. If you receive a reserved notice below, this NSIA audition has reached capacity. If you would like to be added to a waitlist please email: tbtsummer@texasballet.org. We're sorry but this event has been reserved. Please review our calendar for another available date and time. Thank you.