It’s a good point that Macdaddy makes. Those that have created a good career in music from my years at music college were already good enough to be professional when they got there, so for them it was more of a networking exercise.
However, despite having the degree it was much harder for me to get good jobs than mates who had studied more conventional subjects. I have managed to carve out an okay career in finance since but it was a lot of hard work at the beginning in less glamorous jobs.
Also don’t worry about the auditions. The less prestigious places like BIMM, ICMP, ACM ect let anyone in wiling to pay the fees.