Conducting auditions are something that's hard to navigate as each organization and ensemble does look for different things, but no one would disqualify a good conductor!
Typically, an audition for an assistant conductor would be only 10-15 minutes, while a music director audition might be a full rehearsal (2-3 hour), or even a concert cycle consisting 4-6 rehearsals, depending on the ensemble's schedule.
My objective of all conducting auditions is to share my musical ideas with the ensemble while demonstrating a representation of how my typical rehearsal flows.
Some Tips: