And live performance is a different world from recorded. "Music industry" is huge, and I'm afraid that if your only starting point is "I like music" then you're not going to be very successful.
My wife's degrees are in technical theatre, but she does a large number of musical events as the Assistant Production Manager and Master Electrician of a busy venue. It's a good job, and the people who come through have been loveley. They have audio staff for both front of house and the monitor mix, technicians to move stuff around, electricians to hang and focus lights, video and audio recording techs since they make streams and vods available for a number of events, and house management and ushers. So there's definitely work to be had in a variety of places for live performance. Here's the downsides: the hours are irregular, and there is definitely an off season where hours are short. You don't need to be a musician to be an audio tech but you need good ears--the previous venue manager was not a musician but could listen for a couple of seconds, and immediately bump a couple of bands on the EQ and it was right on the money. Their current venue boss can do the same, but is a musician. For good jobs you need to hustle connections, have a great education, and often need both. My wife has a terminal degree. Our friend who is maybe working the highest profile gigs (he's now the lighting designer/manager for Tiesto) has a fancy degree, then worked a variety of industry jobs *not* in music or theatre, then gigged hard and finally got picked up for an awesome steady job. You can't really be sick or choose your vacations. Performances are scheduled and you often don't have a sub available. Repeated sick calls, being late, double booking yourself (common problem for performance techs who are often on hire lists at many venues to keep the income flowing) all will make you fall off call lists and not be able to find work. You will often be working Wednesday through Sunday nights with Monday often being dark, which means that you will never get to go out with your non-industry friends.
So yeah, there are jobs, they can be fun, there are significant sacrifices to doing them, and you need to know what area you're really into beyond liking music. As one last thing: I am a musician, and have a music degree, and I don't work in any capacity around music. The pay is too low, sacrifices too high, and the lack of security while hustling unacceptable to me. I play in a volunteer orchestra and have funds to support all my music related interests from my non-industry job.