Lately I joined up with a couple guitarists who I'd met and were thinking of starting a project. One of the guitarists knew of a young girl that sang well and wanted in. Fast forward 12 practices later. We've got a gig booked this weekend. So far, the singer only knows about 10 songs, and the other 3 of us (plus a pinch-hit drummer) are covering the other 40 or so. I just found out that their intention was to pay her a full cut of the gig when she's only going to be performing 1 of the 3 sets. Am I outta line for making the basic assumption that since she's only doing 1 set she should only get 1/3rd of what would be her cut?