I think they are able to hear properly around week 18. So DH started reading stories every night around that time. I want bubs to recognise daddy's voice as well as mums when he's born. It's really nice. I had to pretty much force him at first, but now every night he says "is bubba ready for his story?" It's so cute

I also talk to my belly, probably not as much as you, but every now and then, especially if I'm being kicked I'll say something to him I guess as that increases I'll be talking to him more and more

I had big plans of playing the piano to him too, but that hasn't eventuated yet, I don't seem to get a chance to sit and play. But I will get around to it!