I’ve been a music booker for a while now, ((People have even paid me to do it at places like The Montreal House, The Peterborough Folk Festival, Harbourfront Centre, and The Distillery Historic District.))  and over the years I’ve developed some guiding practices that govern most of what I do – something I think of as my rules for booking. I tend to stick to these rules because they work, and because whenever I’m unsure, I’ve got them to point to true north. Other bookers are their own people, and I neither expect that they’d adhere to this exact set of ideas nor do I think any of these are…