I watched a beginner class today on Datura (taught by Ashley Lopez - I followed her beginner yoga class once not long ago and liked her teaching style). Seems very effective. I'm very glad to hear it helped your daughter. My brother also has lumbar scoliosis and he was just telling me this morning that missing a couple of "back days" at the gym almost brings his spine back to square one. I'll tell him he must have a look-try at Pilates... and I'll do my "trying" part on Saturday.
In the meantime, belly dance tomorrow, first class after the knee issue started - I'm a little afraid of the figure 8 drills. Tonight I had Bollywood fusion class (beginner level, pretty intense for me but I can get away with much less twisting) and I felt like I was taking a lot more time than usual to think about the movements and how I drive them. I sort of knew that I rarely get as sore in the upper body/core as I do in the legs, but it seems like I'm connecting the dots much more acutely now.