I'm not sure if T and her interest of music and 'dancing' are typical or not. She's a year I the last 6 weeks or so anytime music comes on the smiles and moves around (even when it's just to signal that the oven is preheated). If we ask her to dance she will grin and shake around. When did your child display this kind of behavior? I'm not sure if this is typical or if this is her first real interest and should be doing more to encourage her. Not sure what else could really do, but I'm sure I could grab another music making toy. It's just really fun and sweet to see her having a good time.