Tone deaf

I have discovered a new trick. The baby kicks in response to my singing. Probably to tell me to shut up. It began when Cat encouraged me to talk to the baby through her belly. So I put my mouth on the belly and began talking. Nothing happened, I got bored and hummed some inane tune, can't remember what but it was whatever was on the radio this morning - lo and behold, a hefty kick in my cheek. I continued with a medley of 80's hits and she responded with more thumps.
So far she seems to like songs that go up and down in scale rather more than long slow bluesy type songs. With this in mind, If I was a rich man, tends to get a response, but True by Spandau Ballet gets nadda. Any ABBA is warmly received, but silence on Elton John. I will begin to hum my more heavier classics such as Smoke on Water later, but right now, Cat can take no more of my tone deaf warblings.