Stay a little flexible with the kids stuff. Just my opinion. My son has art class every Saturday. If he's with me, I take him. If he's with W she takes him. When W takes him, I show up because I want to be there for his class and see what he's doing. When I take him, I don't ask W if she's going to come. She knows where and when it is. IF she wants to come, she can, but I am not following up with her.
I basically choose what I want to do when it comes to kids stuff. I am there for soccer games even when it's not my weekend.
See what works for your D in this scenario. Would she like you to be involved with her piano lessons? Make your choice based on that.
