Hi, Samantha! When I used to do a lot of gigs, I would assemble the music in my binder to go with the type of job it was. I liked to mix it up, so that I would go from one genre to another. If you use different-coloured tabs inside the binder, you can label these with whatever categories you want, so that you can flip back and forth from Celtic to contemporary pop, to classical, to old standards, etc. If something straddles the categories, you could have multiple copies, one with each tab. I hope this helps!