I am a Master Electrician. I've been in the trade for 20+ years. It's decent work, but not a "get rich quick" kind of job. The basic minimum time line is as follows:
Must be able to prove 2 years experience to test for a RJ license (restricted residential journeyman)
Must be able to prove 4 years experience to test for a UJ license (unrestricted commercial journeyman)
Must be able to prove 6 years experience to test for a Master's License
This may vary depending on your local authority having jurisdiction. Here in Texas, we just went to state wide licensing and it's basically what I listed above except they look at total hours, you must have held an apprentice card the whole time, you have to provide employment records, etc. Gone are the days when you could make up a fake letterhead to falsely prove time.
In all honesty, you really need that much experience. Granted a lot of it (install) is connect the dots, but if you're gonna ride it out as a career, you need to be able to troubleshoot. There's a lot of different genres of electrical work. Residential new construction is probably the easiest. Drilling holes, nailing up boxes, pulling romex, and terminations. Residential rewire can suck ass. I'm doing a house right now with a low attic full of rockwool itchulation, oh... and stucco walls. My main-stay has always been commercial finish out and retail, but that work is slipping right now due to the economic slump. I like that because it's indoors and if you play your cards right, you can wire up the air conditioning first thang. Right now, service work is keeping me going. Industrial work is probably the hardest. Cutting and threading rigid conduit and installing in a legitimate "explosion proof" manner is a real art form. The creme de la creme is controls. It's highly coveted work, usually by old lazy fools like me. Basically a bunch of relays turning stuff on and off. I did a bunch of control work for the City when I worked for them. I fixed a public display fountain in a park that everybody else said couldn't be fixed. I did sensing and controls for battery storage in a substation, THAT was damn interesting. Of course lineman work is pretty cool if you aren't afraid of heights and KV.
The work itself can be fun, but it can be brutal too. Attic time is unavoidable. There's the occasional ditch digging too. Something you really want to consider as a geetar player is the fact that electrical work is hard on your paws. Twisting wire nuts is counter-productive to fingering guitar strings. You will bust knuckles from time to time. It is physically demanding and you'll feel like you live on a ladder. All in all, it's decent work though. Sure beats plumbing IMO.
If you have any specific questions, PM me. I'll be happy to chat about it.
-Richard