Okay, here is some totally unsolicited advice. She should feel free to completely disregard. This appeared to be a performance of some sort. There was an audience and from the looks of it, she performed a set of songs (not sure how many). If she just started working on Chandelier a couple of days earlier, she probably shouldn't have been performing it in my opinion. Practice is such an integral part to success as a performer. Countless hours of rehearsal and practice should precede any performance. And it's been said that a song should be performed in private at least 100 times before it is performed in public. Having to use sheet music to perform a song that she just started working on two days earlier is not a recipe for success. She should hold herself to a much higher standard if she is serious about making it as a performer. If she can't be bothered to put the required work in to learn the song, why would a producer want to work with her? She has natural talent, no doubt about it. But if she's serious about music, she needs to do everything she can to be flawless every time she steps on a stage. Good is the enemy of great.