Unfortunately, hanging out and talking about a topic isn't what being a lecturer is all about.
There are these things called students that you're accountable for - grades, course content, syllabi... it's actually a fair amount of work, despite the pittance you're paid for it (he's probably better off at the library...)
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My baby brother, who just turned 41, is a musician (bass player). He's had a few different bands, they get gigs, one actually put out an album before they disbanded (and some Irish group took their name, so I can't find anything online about them anymore). He works at Trader Joe's as a "day job" for the insurance, and helps a cabinetmaker through the winter when the gigs are few and far between, but he lives for the music. He's currently in a jazz trio and a reformed group from the one that put out the album. Occasionally he gets out the string bass and plays with a chamber orchestra.
Will he ever hit the big time? Hell no. Does he make a living off his music? Nope, again. Does he have goals?
Well, hard to tell.
Is he happy? He gets to play his music, and his life's pretty stable. He has friends and lovers. Yeah, he's happy. Marten could do far worse.
Edit: After some concerted searching, I find that their CD is available through Amazon for 29.99.
Better hurry, only one left...
Yeah, edited out the name. Privacy and all that... the cat's either Morrie or Artie, one of my parent's twin cats. They got named by tormenting the dog, Sherlock...