Before I moved to the States, I played a 9 month contract for Cunard going around the Leeward and Windward Isle based out of Puerto Rico in a nine piece dance band.
They treated their musicians like passengers... Passenger cabins, passenger dining (or crew, if you wanted), passenger drinking (or crew, which was MUCH cheaper!) and only two cabaret shows a night and one day gig on the day we steamed to Venezuela from P.R..
I went diving almost every day for most of it (island hopper cruises have no passengers aboard during the day), and had a great time. Fast forward 25 years or so, and everything seems to have gone to the dogs. Sad.
Being single, I would do it again in a flash if I could get the same deal, but maybe stick to six months at a time. They look huge when you board them, but those cruise ships shrink about 20ft a day once you get aboard!
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An arranger is just a tool. What matters is what you build with it..!