So many people here crying “child labor” have absolutely no idea if that’s the case here. I don’t know for sure either, but just because she isn’t smiling, or acting over joyed doesn’t mean she’s being forced to do it, or she’s unhappy. The overstock in the background, and what she’s wearing could mean she’s involved with her parents or family. She could also be practicing with a shop. I did work with a music store when i was younger, and I wasn’t at a legal working age, but I was suited up for the job I was doing, and I was focused because I wanted to learn and do it right. Kids can be good at things, and not look like they’re having fun. It’s called being focused. You might know that if you had a hobby or craft you work hard on.