What if it was, say, Sting, and he was going to pay you 5K per gig. And he had charts, which you are required to stick to. Would you do it?
That's kind of getting to the core issue here. Lack of respect for BL's vision. And at what point you're willing to work for a dictator, or want a democracy.
And I said work. Playing, for me personally isn't work, it's a hobby. If it's not your hobby, it's your work.
I've worked for both dictators and democratics in corporate environs. Generally, my take on dictators is that their skill set has to be fairly advanced, to the point that I can learn something from them. Otherwise, I avoid them. And once I've learned what I can from them, I leave the situation.
I prefer democratics. And my demands on what they offer in the skills department is overall lower. Frankly, I've learned far more technical skills working for dictators, and more people skills from democratics.
Either management styles works. But I'd bet top musicians (like Sting) tend to the dictator side. Watch a behind the scenes with a Michael Jackson or Springsteen. These are people that bleed their craft, and expect others to as well. This comes out even in controlled environment of filming. I expect ppl work with them put up with an amazing amount of criticism, and deal with it b/c they are improving their craft.
So... your BL. Sounds like you don't respect his vision (not that I blame you) and he wants to dictate what you should do. Per the above, a bad combination, b/c dictators are only worth dealing with if you're learning something.
So, next time. Either find a BL with a vision you can back, find a democratic band, or be the BL.