I have been involved in casting for several of the vocal compeition shows on national television, i.e. American Idol, The Voice and The Four. These are not easy auditions since they are really casting calls. What that means is that usually the casting director is looking for certain types for the show. HOWEVER, I also believe that an undeniable talent is an undeniable talent and goes beyond type casting. It is very important to be prepared for these auditions and be focused. They are not easy. Learning how to audition is a skill. Being prepared is work.